MedWorm.com provides a medical RSS filtering service. Over 6000 RSS medical sources are combined and output via different filters. This feed contains the latest items from the 'The Journal of Bone and Joint Surgery. British volume' source. Thu, 09 Feb 2012 00:02:43 +0100 http://www.medworm.com/index.php?rid=5571654&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22219239%26dopt%3DAbstract Authors: Robinson CM, Seah KT, Chee YH, Hindle P, Murray IR Abstract Frozen shoulder is commonly encountered in general orthopaedic practice. It may arise spontaneously without an obvious predisposing cause, or be associated with a variety of local or systemic disorders. Diagnosis is based upon the recognition of the characteristic features of the pain, and selective limitation of passive external rotation. The macroscopic and histological features of the capsular contracture are well-defined, but the underlying pathological processes remain poorly understood. It may cause protracted disability, and imposes a considerable burden on health service resources. Most patients are still managed by physiotherapy in primary care, and only the more refractory cases are referred for speciali... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5571654 Sun, 01 Jan 2012 05:00:00 +0100 5571654 http://www.medworm.com/index.php?rid=5571653&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22219240%26dopt%3DAbstract This article explores current concepts in the causes of, and underlying biological mechanism resulting in peri-prosthetic osteolysis, reviewing the current basic science and clinical literature surrounding the topic. PMID: 22219240 [PubMed - in process] (Source: The Journal of Bone and Joint Surgery. British volume) The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5571653 Sun, 01 Jan 2012 05:00:00 +0100 5571653 http://www.medworm.com/index.php?rid=5571652&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22219241%26dopt%3DAbstract Authors: Popovic D, King GJ Abstract In light of the growing number of elderly osteopenic patients with distal humeral fractures, we discuss the history of their management and current trends. Under most circumstances operative fixation and early mobilisation is the treatment of choice, as it gives the best results. The relative indications for and results of total elbow replacement versus internal fixation are discussed. PMID: 22219241 [PubMed - in process] (Source: The Journal of Bone and Joint Surgery. British volume) The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5571652 Sun, 01 Jan 2012 05:00:00 +0100 5571652 http://www.medworm.com/index.php?rid=5571651&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22219242%26dopt%3DAbstract Authors: Uzoigwe CE, Middleton RG Abstract Radiological imaging is necessary in a wide variety of trauma and elective orthopaedic operations. The evolving orthopaedic workforce includes an increasing number of pregnant workers. Current legislation in the United Kingdom, Europe and United States allows them to choose their degree of participation, if any, with fluoroscopic procedures. For those who wish to engage in radiation-prone procedures, specific regulations apply to limit the radiation dose to the pregnant worker and unborn child. This paper considers those aspects of radiation protection, the potential effects of exposure to radiation in pregnancy and the dose of radiation from common orthopaedic procedures, which are important for safe clinical practice. PMID: 22219242 ... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5571651 Sun, 01 Jan 2012 05:00:00 +0100 5571651 http://www.medworm.com/index.php?rid=5571650&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22219243%26dopt%3DAbstract Authors: Kearney RS, Costa ML Abstract Rupture of the tendo Achillis is a common injury with a rising incidence. Traditionally the key question following this injury has been whether or not to operate. However a contemporary Cochrane review highlighted that the method of rehabilitation may also have an important contribution to the outcome. Since this review, various early weight-bearing rehabilitation protocols have been described. Currently evidence points to the use of early functional rehabilitation, regardless of operative or non-operative management. However, there is no consensus on which exact functional rehabilitation protocol should be used. Future research should be directed towards improving our understanding of how the different rehabilitative components interact in th... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5571650 Sun, 01 Jan 2012 05:00:00 +0100 5571650 http://www.medworm.com/index.php?rid=5571649&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22219244%26dopt%3DAbstract Authors: Nho JH, Lee YK, Kim HJ, Ha YC, Suh YS, Koo KH Abstract A variety of radiological methods of measuring version of the acetabular component after total hip replacement (THR) have been described. The aim of this study was to evaluate the reliability and validity of six methods (those of Lewinnek; Widmer; Hassan et al; Ackland, Bourne and Uhthoff; Liaw et al; and Woo and Morrey) that are currently in use. In 36 consecutive patients who underwent THR, version of the acetabular component was measured by three independent examiners on plain radiographs using these six methods and compared with measurements using CT scans. The intra- and interobserver reliabilities of each measurement were estimated. All measurements on both radiographs and CT scans had excellent intra- and inter... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5571649 Sun, 01 Jan 2012 05:00:00 +0100 5571649 http://www.medworm.com/index.php?rid=5571648&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22219245%26dopt%3DAbstract Authors: Affatato S, Traina F, De Fine M, Carmignato S, Toni A Abstract Alumina-alumina bearings are among the most resistant to wear in total hip replacement. Examination of their surfaces is one way of comparing damage caused by wear of hip joints simulated in vitro to that seen in explanted bearings. The aim of this study was to determine whether second-generation ceramic bearings exhibited a better pattern of wear than those reported in the literature for first-generation bearings. We considered both macro- and microscopic findings. We found that long-term alumina wear in association with a loose acetabular component could be categorised into three groups. Of 20 specimens, four had 'low wear', eight 'crescent wear' and eight 'severe wear', which was characterised by a change in... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5571648 Sun, 01 Jan 2012 05:00:00 +0100 5571648 http://www.medworm.com/index.php?rid=5571647&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22219246%26dopt%3DAbstract In conclusion, performing THR through a shorter incision involving sparing piriformis is more difficult and only provides short-term benefits compared with the standard posterior approach. PMID: 22219246 [PubMed - in process] (Source: The Journal of Bone and Joint Surgery. British volume) The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5571647 Sun, 01 Jan 2012 05:00:00 +0100 5571647 http://www.medworm.com/index.php?rid=5571646&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22219247%26dopt%3DAbstract We report the long-term results of revision total hip replacement using femoral impaction allografting with both uncemented and cemented Freeman femoral components. A standard design of component was used in both groups, with additional proximal hydroxyapatite coating in the uncemented group. A total of 33 hips in 30 patients received an uncemented component and 31 hips in 30 patients a cemented component. The mean follow-up was 9.8 years (2 to 17) in the uncemented group and 6.2 years (1 to 11) in the cemented group. Revision procedures (for all causes) were required in four patients (four hips) in the uncemented group and in five patients (five hips) in the cemented group. Harris hip scores improved significantly in both groups and were maintained independently of the extent of any mig... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5571646 Sun, 01 Jan 2012 05:00:00 +0100 5571646 http://www.medworm.com/index.php?rid=5571645&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22219248%26dopt%3DAbstract Authors: Kawahara S, Matsuda S, Fukagawa S, Mitsuyasu H, Nakahara H, Higaki H, Shimoto T, Iwamoto Y Abstract In posterior stabilised total knee replacement (TKR) a larger femoral component is sometimes selected to manage the increased flexion gap caused by resection of the posterior cruciate ligament. However, concerns remain regarding the adverse effect of the increased anteroposterior dimensions of the femoral component on the patellofemoral (PF) joint. Meanwhile, the gender-specific femoral component has a narrower and thinner anterior flange and is expected to reduce the PF contact force. PF contact forces were measured at 90°, 120°, 130° and 140° of flexion using the NexGen Legacy Posterior Stabilized (LPS)-Flex Fixed Bearing Knee system using Standard, Upsized and Gender ... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5571645 Sun, 01 Jan 2012 05:00:00 +0100 5571645 http://www.medworm.com/index.php?rid=5571644&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22219249%26dopt%3DAbstract Authors: Aurich M, Hofmann GO, Mückley T, Mollenhauer J, Rolauffs B Abstract We attempted to characterise the biological quality and regenerative potential of chondrocytes in osteochondritis dissecans (OCD). Dissected fragments from ten patients with OCD of the knee (mean age 27.8 years (16 to 49)) were harvested at arthroscopy. A sample of cartilage from the intercondylar notch was taken from the same joint and from the notch of ten patients with a traumatic cartilage defect (mean age 31.6 years (19 to 52)). Chondrocytes were extracted and subsequently cultured. Collagen types 1, 2, and 10 mRNA were quantified by polymerase chain reaction. Compared with the notch chondrocytes, cells from the dissecate expressed similar levels of collagen types 1 and 2 mRNA. The level of collagen ... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5571644 Sun, 01 Jan 2012 05:00:00 +0100 5571644 http://www.medworm.com/index.php?rid=5571643&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22219250%26dopt%3DAbstract Authors: Christel PS, Akgun U, Yasar T, Karahan M, Demirel B Abstract The clinical diagnosis of a partial tear of the anterior cruciate ligament (ACL) is still subject to debate. Little is known about the contribution of each ACL bundle during the Lachman test. We investigated this using six fresh-frozen cadaveric lower limbs. Screws were placed in the femora and tibiae as fixed landmarks for digitisation of the bone positions. The femur was secured horizontally in a clamp. A metal hook was screwed to the tibial tubercle and used to apply a load of 150 N directed anteroposteriorly to the tibia to simulate the Lachman test. The knees then received constant axial compression and 3D knee kinematic data were collected by digitising the screw head positions in 30° flexion under each t... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5571643 Sun, 01 Jan 2012 05:00:00 +0100 5571643 http://www.medworm.com/index.php?rid=5571642&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22219251%26dopt%3DAbstract In this study, 28 patients undergoing 30 arthrodesis procedures on the hindfoot had a mean of 48 cm(3 )(43 to 50) of bone harvested locally from the hindfoot or the tibial shaft by antegrade or retrograde reaming. No patient sustained a fracture of the calcaneum, talus or tibia. There was no morbidity except for one complication when the reamer breached the medial tibial cortex. This healed uneventfully. This method of using the reamer-irrigator-aspirator system is an extension of the standard technique of intramedullary reaming of the lower limb: it produces good-quality bone graft with viable growth factors consistent with that of the iliac crest, and donor site morbidity is low. This is an efficient method of obtaining autologous bone for use in arthrodesis of the ankle or hindfoot. ... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5571642 Sun, 01 Jan 2012 05:00:00 +0100 5571642 http://www.medworm.com/index.php?rid=5571641&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22219252%26dopt%3DAbstract We report the effectiveness of revision of total elbow replacement by re-cementing. Between 1982 and 2004, 53 elbows in 52 patients were treated with re-cementing of a total elbow replacement into part or all of the existing cement mantle or into the debrided host-bone interface, without the use of structural bone augmentation or a custom prosthesis. The original implant revision was still in situ and functional in 42 of 53 elbows (79%) at a mean of 94.5 months (26 to 266) after surgery. In 31 of these 42 elbows (74%) the Mayo Elbow Performance Score was good or excellent. Overall, of the 53 elbows, 18 (34%) required re-operation, ten (19%) for loosening. A classification system was developed to identify those not suitable for revision by this technique, and using this we have showed that ... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5571641 Sun, 01 Jan 2012 05:00:00 +0100 5571641 http://www.medworm.com/index.php?rid=5571640&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22219253%26dopt%3DAbstract Authors: Jeon IH, Sanchez-Sotelo J, Zhao K, An KN, Morrey BM Abstract We undertook this study to determine the minimum amount of coronoid necessary to stabilise an otherwise intact elbow joint. Regan-Morrey types II and III, plus medial and lateral oblique coronoid fractures, collectively termed type IV fractures, were simulated in nine fresh cadavers. An electromagnetic tracking system defined the three-dimensional stability of the ulna relative to the humerus. The coronoid surface area accounts for 59% of the anterior articulation. Alteration in valgus, internal and external rotation occurred only with a type III coronoid fracture, accounting for 68% of the coronoid and 40% of the entire articular surface. A type II fracture removed 42% of the coronoid articulation and 25% of the... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5571640 Sun, 01 Jan 2012 05:00:00 +0100 5571640 http://www.medworm.com/index.php?rid=5571639&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22219254%26dopt%3DAbstract Authors: Lee JH, Lee JH, Park JW, Shin YH Abstract In patients with osteoporosis there is always a strong possibility that pedicle screws will loosen. This makes it difficult to select the appropriate osteoporotic patient for a spinal fusion. The purpose of this study was to determine the correlation between bone mineral density (BMD) and the magnitude of torque required to insert a pedicle screw. To accomplish this, 181 patients with degenerative disease of the lumbar spine were studied prospectively. Each underwent dual-energy x-ray absorptiometry (DEXA) and intra-operative measurement of the torque required to insert each pedicle screw. The levels of torque generated in patients with osteoporosis and osteopenia were significantly lower than those achieved in normal patients. Pos... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5571639 Sun, 01 Jan 2012 05:00:00 +0100 5571639 http://www.medworm.com/index.php?rid=5571638&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22219255%26dopt%3DAbstract This study suggests that the participants were less influenced by DSCA than by the morphological appearance of the dural sac. Classifying lumbar spinal stenosis according to morphology rather than surface measurements appears to be consistent with current clinical practice. PMID: 22219255 [PubMed - in process] (Source: The Journal of Bone and Joint Surgery. British volume) The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5571638 Sun, 01 Jan 2012 05:00:00 +0100 5571638 http://www.medworm.com/index.php?rid=5571637&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22219256%26dopt%3DAbstract Authors: Sawalha S, Parker MJ Abstract We compared 5341 patients with an initial fracture of the hip with 633 patients who sustained a second fracture of the contralateral hip. Patients presenting with a second fracture were more likely to be institutionalised, female, older, and have lower mobility and mental test scores. There was no significant difference between the two groups with regards to the change in the level of mobility or return to their original residence at one year follow-up. However, the mortality rate in the second fracture group was significantly higher at one year (31.6% vs 27.3%, p = 0.024). In two thirds of patients, the second fracture was in the same anatomical location as the first. In an analysis of 293 patients, approximately 70% of second fractures occur... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5571637 Sun, 01 Jan 2012 05:00:00 +0100 5571637 http://www.medworm.com/index.php?rid=5571636&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22219257%26dopt%3DAbstract Authors: Penn-Barwell JG, Murray CK, Wenke JC Abstract Most animal studies indicate that early irrigation and debridement reduce infection after an open fracture. Unfortunately, these studies often do not involve antibiotics. Clinical studies indicate that the timing of initial debridement does not affect the rate of infection but these studies are observational and fraught with confounding variables. The purpose of this study was to control these variables using an animal model incorporating systemic antibiotics and surgical treatment. We used a rat femur model with a defect which was contaminated with Staphylococcus aureus and treated with a three-day course of systemic cefazolin (5 mg/kg 12-hourly) and debridement and irrigation, both of which were initiated independently at two... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5571636 Sun, 01 Jan 2012 05:00:00 +0100 5571636 http://www.medworm.com/index.php?rid=5571635&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22219258%26dopt%3DAbstract Authors: Poultsides LA, Gonzalez Della Valle A, Memtsoudis SG, Ma Y, Roberts T, Sharrock N, Salvati E Abstract We performed a meta-analysis of modern total joint replacement (TJR) to determine the post-operative mortality and the cause of death using different thromboprophylactic regimens as follows: 1) no routine chemothromboprophylaxis (NRC); 2) Potent anticoagulation (PA) (unfractionated or low-molecular-weight heparin, ximelagatran, fondaparinux or rivaroxaban); 3) Potent anticoagulation combined (PAC) with regional anaesthesia and/or pneumatic compression devices (PCDs); 4) Warfarin (W); 5) Warfarin combined (WAC) with regional anaesthesia and/or PCD; and 6) Multimodal (MM) prophylaxis, including regional anaesthesia, PCDs and aspirin in low-risk patients. Cause of death was c... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5571635 Sun, 01 Jan 2012 05:00:00 +0100 5571635 http://www.medworm.com/index.php?rid=5571634&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22219259%26dopt%3DAbstract Authors: Streitbuerger A, Ahrens H, Gosheger G, Henrichs M, Balke M, Dieckmann R, Hardes J Abstract The aim of this study was to define the treatment criteria for patients with recurrent chondrosarcoma. We reviewed the data of 77 patients to examine the influence of factors such as the intention of treatment (curative/palliative), extent of surgery, resection margins, status of disease at the time of local recurrence and the grade of the tumour. A total of 70 patients underwent surgery for recurrent chondrosarcoma. In seven patients surgery was not a viable option. Metastatic disease occurred in 41 patients, appearing synchronously with the local recurrence in 56% of cases. For patients without metastasis at the time of local recurrence, the overall survival at a mean follow-up af... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5571634 Sun, 01 Jan 2012 05:00:00 +0100 5571634 http://www.medworm.com/index.php?rid=5571633&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22219260%26dopt%3DAbstract Authors: Kim SJ, Agashe MV, Song SH, Choi HJ, Lee H, Song HR Abstract Lengthening of the humerus is now an established technique. We compared the complications of humeral lengthening with those of femoral lengthening and investigated whether or not the callus formation in the humerus proceeds at a higher rate than that in the femur. A total of 24 humeral and 24 femoral lengthenings were performed on 12 patients with achondroplasia. We measured the pixel value ratio (PVR) of the lengthened area on radiographs and each radiograph was analysed for the shape, type and density of the callus. The quality of life (QOL) of the patients after humeral lengthening was compared with that prior to surgery. The complication rate per segment of humerus and femur was 0.87% and 1.37%, respectively.... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5571633 Sun, 01 Jan 2012 05:00:00 +0100 5571633 http://www.medworm.com/index.php?rid=5571632&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22219261%26dopt%3DAbstract We present a prospective case series of 82 paediatric patients who underwent plating of their forearm fracture over an eight-year period with a minimum follow-up of two years. The study institution does not routinely remove forearm plates. A total of 116 plates were used: 79 one-third tubular plates and 37 dynamic compression plates (DCP). There were 12 complications: six plates (7.3%) were removed for pain or stiffness and there were six (7.3%) implant-related fractures. Overall, survival of the plates was 85% at 10 years. Cox regression analysis identified radial plates (odds ratio (OR) 4.4, p = 0.03) and DCP fixation (OR 3.2, p = 0.02) to be independent risk factors of an implant-related fracture. In contrast ulnar plates were more likely to cause pain or irritation necessitating remov... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5571632 Sun, 01 Jan 2012 05:00:00 +0100 5571632 http://www.medworm.com/index.php?rid=5571631&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22219262%26dopt%3DAbstract Authors: Jung ST, Park HW, Chung JY Abstract In distal fibular resection without reconstruction, the stabilising effect of the lateral malleolus is lost. Thus, the ankle may collapse into valgus and may be unstable in varus. Here, we describe a child who underwent successful staged surgical correction of a severe neglected valgus deformity after excision of the distal fibula for a Ewing's sarcoma. PMID: 22219262 [PubMed - in process] (Source: The Journal of Bone and Joint Surgery. British volume) The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5571631 Sun, 01 Jan 2012 05:00:00 +0100 5571631 http://www.medworm.com/index.php?rid=5571630&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22219263%26dopt%3DAbstract Authors: Khanduja V Abstract The FRCS (Tr & Orth) examination has three components: MCQs, Vivas and Clinical Examination. The Vivas are further divided into four sections comprising Basic Science, Adult Pathology, Hands and Children's Orthopaedics and Trauma. The Clinical Examination section is divided into Upper and Lower limb cases. The aim of this section in the Journal is to focus specifically on the trainees preparing for the exam and to cater to all the sections of the exam. The vision is to complete the cycle of all relevant exam topics (as per the syllabus) in four years. PMID: 22219263 [PubMed - in process] (Source: The Journal of Bone and Joint Surgery. British volume) The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5571630 Sun, 01 Jan 2012 05:00:00 +0100 5571630 http://www.medworm.com/index.php?rid=5502035&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22161917%26dopt%3DAbstract Authors: Alshryda S, Sarda P, Sukeik M, Nargol A, Blenkinsopp J, Mason JM Abstract We conducted a systematic review and meta-analysis of randomised controlled trials evaluating the effect of tranexamic acid (TXA) upon blood loss and transfusion in primary total knee replacement. The review used the generic evaluation tool designed by the Cochrane Bone, Joint and Muscle Trauma Group. A total of 19 trials were eligible: 18 used intravenous administration, one also evaluated oral dosing and one trial evaluated topical use. TXA led to a significant reduction in the proportion of patients requiring blood transfusion (risk ratio (RR) 2.56, 95% confidence interval (CI) 2.1 to 3.1, p < 0.001; heterogeneity I(2) = 75%; 14 trials, 824 patients). Using TXA also reduced total blood loss by ... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5502035 Thu, 01 Dec 2011 05:00:00 +0100 5502035 http://www.medworm.com/index.php?rid=5502034&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22161918%26dopt%3DAbstract Authors: Alvand A, Auplish S, Khan T, Gill HS, Rees JL Abstract The aim of this study was to investigate the effect of training on the arthroscopic performance of a group of medical students and to determine whether all students could be trained to competence. Thirty-three medical students with no previous experience of arthroscopy were randomised to a 'Trained' or an 'Untrained' cohort. They were required to carry out 30 episodes of two simulated arthroscopic tasks (one shoulder and one knee). The primary outcome variable was task success at each episode. Individuals achieved competence when their learning curve stabilised. The secondary outcome was technical dexterity, assessed objectively using a validated motion analysis system. Six subjects in the 'Untrained' cohort failed to ... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5502034 Thu, 01 Dec 2011 05:00:00 +0100 5502034 http://www.medworm.com/index.php?rid=5502033&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22161919%26dopt%3DAbstract We report the results of 62 hips in 62 patients (17 males, 45 females) with mean age of 62.4 years (37 to 81), who underwent revision of the acetabular component of a total hip replacement due to aseptic loosening between May 2003 and November 2007. All hips had a Paprosky type IIIa acetabular defect. Acetabular revision was undertaken using a Procotyl E cementless oblong implant with modular side plates and a hook combined with impaction allografting. At a mean follow-up of 60.5 months (36 to 94) with no patients lost to follow-up and one died due to unrelated illness, the complication rate was 38.7%. Complications included aseptic loosening (19 hips), deep infection (3 hips), broken hook and side plate (one hip) and a femoral nerve palsy (one hip). Further revision of the acetabular com... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5502033 Thu, 01 Dec 2011 05:00:00 +0100 5502033 http://www.medworm.com/index.php?rid=5502032&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22161920%26dopt%3DAbstract Authors: Walter WL, Kurtz SM, Esposito C, Hozack W, Holley KG, Garino JP, Tuke MA Abstract This multicentre study analysed 12 alumina ceramic-on-ceramic components retrieved from squeaking total hip replacements after a mean of 23 months in situ (11 to 61). The rates and patterns of wear seen in these squeaking hips were compared with those seen in matched controls using retrieval data from 33 'silent' hip replacements with similar ceramic bearings. All 12 bearings showed evidence characteristic of edge-loading wear. The median rate of volumetric wear was 3.4 mm(3)/year for the acetabular component, 2.9 mm(3)/year on the femoral heads and 6.3 mm(3)/year for head and insert combined. This was up to 45 times greater than that of previously reported silent ceramic-on-ceramic retrieval... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5502032 Thu, 01 Dec 2011 05:00:00 +0100 5502032 http://www.medworm.com/index.php?rid=5502031&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22161921%26dopt%3DAbstract Authors: Malviya A, Ramaskandhan JR, Bowman R, Hashmi M, Holland JP, Kometa S, Lingard E Abstract The aim of this study was to investigate the possible benefit of large-head metal-on-metal bearing on a stem for primary hip replacement compared with a 28 mm diameter conventional metal-on-polyethylene bearing in a prospective randomised controlled trial. We investigated cemented stem behaviour between these two different bearings using Einzel-Bild-Röntgen-Analyse, clinical and patient reported measures (Harris hip score, Western Ontario and McMaster Universities osteoarthritis index, Short Form-36 and satisfaction) and whole blood metal ion levels at two years. A power study indicated that 50 hips were needed in each group to detect subsidence of > 5 mm at two years with a p-val... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5502031 Thu, 01 Dec 2011 05:00:00 +0100 5502031 http://www.medworm.com/index.php?rid=5502030&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22161922%26dopt%3DAbstract Authors: Pegg E, Pandit H, Gill HS, Keys GW, Svard UG, O'Connor JJ, Murray DW Abstract Since the Oxford knee was first used unicompartmentally in 1982, a small number of bearings have fractured. Of 14 retrieved bearings, we examined ten samples with known durations in situ (four Phase 1, four Phase 2 and two Phase 3). Evidence of impingement and associated abnormally high wear (> 0.05 mm per year) as well as oxidation was observed in all bearings. In four samples the fracture was associated with the posterior radio-opaque wire. Fracture surfaces indicated fatigue failure, and scanning electron microscopy suggested that the crack initiated in the thinnest region. The estimated incidence of fracture was 3.20% for Phase 1, 0.74% for Phase 2, 0.35% for Phase 3, and 0% for Phase 3 wi... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5502030 Thu, 01 Dec 2011 05:00:00 +0100 5502030 http://www.medworm.com/index.php?rid=5502029&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22161923%26dopt%3DAbstract Authors: Willis-Owen CA, Sarraf KM, Martin AE, Martin DK Abstract Symptomatic and asymptomatic deep-vein thrombosis (DVT) is a common complication of knee replacement, with an incidence of up to 85% in the absence of prophylaxis. National guidelines for thromboprophylaxis in knee replacement are derived from total knee replacement (TKR) data. No guidelines exist specific to unicompartmental knee replacement (UKR). We investigated whether the type of knee arthroplasty (TKR or UKR) was related to the incidence of DVT and discuss the applicability of existing national guidelines for prophylaxis following UKR. Data were collected prospectively on 3449 knee replacements, including procedure type, tourniquet time, surgeon, patient age, use of drains and gender. These variables were relat... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5502029 Thu, 01 Dec 2011 05:00:00 +0100 5502029 http://www.medworm.com/index.php?rid=5502028&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22161924%26dopt%3DAbstract Authors: Donken CC, Goorden AJ, Verhofstad MH, Edwards MJ, van Laarhoven CJ Abstract We assessed the long-term (20 years) outcome of closed reduction and immobilisation in 19 patients with an isolated fracture of the posterior malleolus of the ankle treated at a single hospital between 1985 and 1990. The assessments used were an Olerud functional questionnaire score, physical examination using a loaded dorsal and plantar range of movement measurement, radiological analysis of medial joint space widening, the Cedell score for anatomical alignment of all three malleoli, and the radiological presence of osteoarthritic change. There were excellent or good results in 14 patients (74%) according to the Olerud score, in 18 patients (95%) according to loaded dorsal and plantar range of mo... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5502028 Thu, 01 Dec 2011 05:00:00 +0100 5502028 http://www.medworm.com/index.php?rid=5502027&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22161925%26dopt%3DAbstract Authors: Yildirim C, Akmaz I, Sahin O, Keklikci K Abstract This pilot study analysed the outcome of open versus endoscopic curettage and bone grafting for the treatment of simple calcaneal bone cysts. A total of 26 patients were evaluated into two equal groups: group 1 was treated with traditional open curettage and bone grafting and group 2 was treated with endoscopic curettage and percutaneous bone grafting. Cyst size, operating time, length of stay, time to healing, complications, further surgery and radiological healing were recorded and differences were statistically compared. The mean age of the patients was 22.9 years (18 to 28) and the mean follow-up was 28.7 months (24 to 36). There were no statistically significant differences in regard to age of patients, cyst size and ... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5502027 Thu, 01 Dec 2011 05:00:00 +0100 5502027 http://www.medworm.com/index.php?rid=5502026&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22161926%26dopt%3DAbstract Authors: Robinson CM, Stone OD, Murray IR Abstract We identified 16 patients with a mean age of 56.5 years (31 to 86) from a large consecutive series of patients with proximal humeral fractures over a 15-year period, who had sustained a fracture with skin compromise after a blunt injury. The study group represented 0.2% of 7825 proximal humeral fractures treated during this period and all had a displaced Neer two-part fracture pattern. Two patterns of skin injury were identified: in ten patients there was skin penetration at the time of the original injury, and the other six patients initially had closed injuries. These six patients had fracture fragments penetrating the muscular envelope to lie subcutaneously producing either early skin tethering (two patients) or delayed skin pen... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5502026 Thu, 01 Dec 2011 05:00:00 +0100 5502026 http://www.medworm.com/index.php?rid=5502025&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22161927%26dopt%3DAbstract Authors: Kanemura T, Ishikawa Y, Matsumoto A, Yoshida G, Sakai Y, Itoh Z, Imagama S, Kawakami N Abstract We evaluated the maturation of grafted bone in cases of successful fusion after a one- or two-level posterior lumbar interbody fusion (PLIF) using interbody carbon cages. We carried out a five-year prospective longitudinal radiological evaluation of patients using plain radiographs and CT scans. One year after surgery, 117 patients with an early successful fusion were selected for inclusion in the study. Radiological evaluation of interbody bone fusion was graded on a 4-point scale. The mean grades of all radiological and CT assessments increased in the five years after surgery, and differences compared to the previous time interval were statistically significant for three or fo... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5502025 Thu, 01 Dec 2011 05:00:00 +0100 5502025 http://www.medworm.com/index.php?rid=5502024&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22161928%26dopt%3DAbstract We report on the outcome of a series of 57 patients with acute SCI and facet dislocation sustained when playing rugby and treated by reduction between 1988 and 2000 in Conradie Hospital, Cape Town. A total of 32 patients were completely paralysed at the time of reduction. Of these 32, eight were reduced within four hours of injury and five of them made a full recovery. Of the remaining 24 who were reduced after four hours of injury, none made a full recovery and only one made a partial recovery that was useful. Our results suggest that low-velocity trauma causing SCI, such as might occur in a rugby accident, presents an opportunity for secondary prevention of permanent SCI. In these cases the permanent damage appears to result from secondary injury, rather than primary mechanical spinal co... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5502024 Thu, 01 Dec 2011 05:00:00 +0100 5502024 http://www.medworm.com/index.php?rid=5502023&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22161929%26dopt%3DAbstract Authors: Bordei P Abstract Platelet-derived growth factor (PDGF) is known to stimulate osteoblast or osteoprogenitor cell activity. We investigated the effect of locally applied PDGF from poly-d,l-lactide (PDLLA)-coated implants on fracture healing in a rat model. A closed fracture of the right tibia of four-month-old Sprague-Dawley rats (n = 40) was stabilised with implants coated with a biodegradable PDLLA versus implants coated with PDLLA and PDGF. Radiographs were taken throughout the study, and a marker of DNA activity, bromodeoxyuridine (BrdU), was injected before the rats were killed at three, seven and ten days. The radiographs showed consolidation of the callus in the PDGF-treated group compared with the control group at all three time points. In the PDGF-treated group, im... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5502023 Thu, 01 Dec 2011 05:00:00 +0100 5502023 http://www.medworm.com/index.php?rid=5502022&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22161930%26dopt%3DAbstract Authors: Judge A, Arden NK, Price A, Glyn-Jones S, Beard D, Carr AJ, Dawson J, Fitzpatrick R, Field RE Abstract We obtained pre-operative and six-month post-operative Oxford hip (OHS) and knee scores (OKS) for 1523 patients who underwent total hip replacement and 1784 patients who underwent total knee replacement. They all also completed a six-month satisfaction question. Scatter plots showed no relationship between pre-operative Oxford scores and six-month satisfaction scores. Spearman's rank correlation coefficients were -0.04 (95% confidence interval (CI) -0.09 to 0.01) between OHS and satisfaction and 0.04 (95% CI -0.01 to 0.08) between OKS and satisfaction. A receiver operating characteristic (ROC) curve analysis was used to identify a cut-off point for the pre-operative OHS/O... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5502022 Thu, 01 Dec 2011 05:00:00 +0100 5502022 http://www.medworm.com/index.php?rid=5502021&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22161931%26dopt%3DAbstract Authors: Gaston CL, Bhumbra R, Watanuki M, Abudu AT, Carter SR, Jeys LM, Tillman RM, Grimer RJ Abstract We retrospectively compared the outcome after the treatment of giant cell tumours of bone either with curettage alone or with adjuvant cementation. Between 1975 and 2008, 330 patients with a giant cell tumour were treated primarily by intralesional curettage, with 84 (25%) receiving adjuvant bone cement in the cavity. The local recurrence rate for curettage alone was 29.7% (73 of 246) compared with 14.3% (12 of 84) for curettage and cementation (p = 0.001). On multivariate analysis both the stage of disease and use of cement were independent significant factors associated with local recurrence. The use of cement was associated with a higher risk of the subsequent need for joint ... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5502021 Thu, 01 Dec 2011 05:00:00 +0100 5502021 http://www.medworm.com/index.php?rid=5502020&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22161932%26dopt%3DAbstract Authors: Vuillermin C, Rodda J, Rutz E, Shore BJ, Smith K, Graham HK Abstract We studied the prevalence of severe crouch gait over a 15-year period in a defined population of children with spastic diplegia and Gross Motor Function Classification System levels II and III, to determine if there had been a decrease following changes to the management of equinus gait. These changes were replacing observational with three-dimensional gait analysis, replacing single level with multilevel surgery, and replacing gastrocsoleus lengthening with gastrocnemius recession. Of 464 children and adolescents with spastic diplegia who underwent three-dimensional gait analysis, 27 had severe crouch gait. Seventeen of these had been managed by isolated lengthening of the gastrocsoleus. Following change... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5502020 Thu, 01 Dec 2011 05:00:00 +0100 5502020 http://www.medworm.com/index.php?rid=5502019&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22161933%26dopt%3DAbstract We report the case of an 82-year-old man who underwent fasciectomy for a severe Dupuytren's contracture, during which an ossified lesion was encountered within the contracture and surrounding the neurovascular bundle. The abnormal tissue was removed with difficulty and heterotopic ossification was confirmed histologically. We believe this is the first report of heterotopic ossification in Dupuytren's disease. PMID: 22161933 [PubMed - as supplied by publisher] (Source: The Journal of Bone and Joint Surgery. British volume) The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5502019 Thu, 01 Dec 2011 05:00:00 +0100 5502019 http://www.medworm.com/index.php?rid=5502018&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22161934%26dopt%3DAbstract Authors: Khanduja V Abstract The FRCS (Tr & Orth) examination has three components: MCQs, Vivas and Clinical Examination. The Vivas are further divided into four sections comprising Basic Science, Adult Pathology, Hands and Children's Orthopaedics and Trauma. The Clinical Examination section is divided into Upper and Lower limb cases. The aim of this section in the Journal is to focus specifically on the trainees preparing for the exam and to cater to all the sections of the exam. The vision is to complete the cycle of all relevant exam topics (as per the syllabus) in four years. PMID: 22161934 [PubMed - as supplied by publisher] (Source: The Journal of Bone and Joint Surgery. British volume) The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5502018 Thu, 01 Dec 2011 05:00:00 +0100 5502018 http://www.medworm.com/index.php?rid=5385557&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22058291%26dopt%3DAbstract Authors: Dias JJ, Singh HP Abstract A displaced fracture of the scaphoid is one in which the fragments have moved from their anatomical position or there is movement between them when stressed by physiological loads. Displacement is seen in about 20% of fractures of the waist of the scaphoid, as shown by translation, a gap, angulation or rotation. A CT scan in the true longitudinal axis of the scaphoid demonstrates the shape of the bone and displacement of the fracture more accurately than do plain radiographs. Displaced fractures can be treated in a plaster cast, accepting the risk of malunion and nonunion. Surgically the displacement can be reduced, checked radiologically, arthroscopically or visually, and stabilised with headless screws or wires. However, rates of union and defo... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5385557 Tue, 01 Nov 2011 04:00:00 +0100 5385557 http://www.medworm.com/index.php?rid=5385556&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22058292%26dopt%3DAbstract Authors: Dodds AL, Gupte CM, Neyret P, Williams AM, Amis AA Abstract This annotation considers the place of extra-articular reconstruction in the treatment of anterior cruciate ligament (ACL) deficiency. Extra-articular reconstruction has been employed over the last century to address ACL deficiency. However, the technique has not gained favour, primarily due to residual instability and the subsequent development of degenerative changes in the lateral compartment of the knee. Thus intra-articular reconstruction has become the technique of choice. However, intra-articular reconstruction does not restore normal knee kinematics. Some authors have recommended extra-articular reconstruction in conjunction with an intra-articular technique. The anatomy and biomechanics of the anterolater... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5385556 Tue, 01 Nov 2011 04:00:00 +0100 5385556 http://www.medworm.com/index.php?rid=5385555&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22058293%26dopt%3DAbstract Authors: Fujii M, Nakashima Y, Noguchi Y, Yamamoto T, Mawatari T, Motomura G, Iwamoto Y Abstract In order to clarify how intra-articular lesions influence the survival of a periacetabular osteotomy in patients with dysplasia of the hip, we performed an observational study of 121 patients (121 hips) who underwent a transposition osteotomy of the acetabulum combined with an arthroscopy. Their mean age was 40.2 years (13 to 64) and the mean follow-up was 9.9 years (2 to 18). Labral and cartilage degeneration tended to originate from the anterosuperior part of the acetabulum, followed by the femoral side. In all, eight hips (6.6%) had post-operative progression to Kellgren-Lawrence grade 4 changes, and these hips were associated with the following factors: moderate osteoarthritis, dec... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5385555 Tue, 01 Nov 2011 04:00:00 +0100 5385555 http://www.medworm.com/index.php?rid=5385554&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22058294%26dopt%3DAbstract We report the results of 79 patients (81 hips) who underwent impaction grafting at revision hip replacement using the Exeter femoral stem. Their mean age was 64 years (31 to 83). According to the Endoklinik classification, 20 hips had a type 2 bone defect, 40 had type 3, and 21 had type 4. The mean follow-up for unrevised stems was 10.4 years (5 to 17). There were 12 re-operations due to intra- and post-operative fractures, infection (one hip) and aseptic loosening (one hip). All re-operations affected type 3 (6 hips) and 4 (6 hips) bone defects. The survival rate for re-operation for any cause was 100% for type 2, 81.2% (95% confidence interval (CI) 67.1 to 95.3) for type 3, and 70.8% (95% CI 51.1 to 90.5) for type 4 defects at 14 years. The survival rate with further revision for aseptic... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5385554 Tue, 01 Nov 2011 04:00:00 +0100 5385554 http://www.medworm.com/index.php?rid=5385553&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22058295%26dopt%3DAbstract Authors: Jameson SS, Charman SC, Gregg PJ, Reed MR, van der Meulen JH Abstract We compared thromboembolic events, major haemorrhage and death after total hip replacement in patients receiving either aspirin or low-molecular-weight heparin (LMWH). We analysed data from the National Joint Registry for England and Wales linked to an administrative database of hospital admissions in the English National Health Service. A total of 108 584 patients operated on between April 2003 and September 2008 were included and followed up for 90 days. Multivariable risk modelling and propensity score matching were used to estimate odds ratios (OR) adjusted for baseline risk factors. An OR < 1 indicates that rates are lower with LMWH than with aspirin. In all, 21.1% of patients were prescribed ... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5385553 Tue, 01 Nov 2011 04:00:00 +0100 5385553 http://www.medworm.com/index.php?rid=5385552&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22058296%26dopt%3DAbstract Authors: Zlotorowicz M, Szczodry M, Czubak J, Ciszek B Abstract We performed a series of 16 anatomical dissections on Caucasian cadaver material to determine the surgical anatomy of the medial femoral circumflex artery (MFCA) and its anastomoses. These confirmed that the femoral head receives its blood supply primarily from the MFCA via a group of posterior superior nutrient arteries and the posterior inferior nutrient artery. In terms of anastomoses that may also contribute to the blood supply, the anastomosis with the inferior gluteal artery, via the piriformis branch, is the most important. These dissections provide a base of knowledge for further radiological studies on the vascularity of the normal femoral head and its vascularity after dislocation of the hip. PMID: 220582... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5385552 Tue, 01 Nov 2011 04:00:00 +0100 5385552 http://www.medworm.com/index.php?rid=5385551&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22058297%26dopt%3DAbstract Authors: Sonnery-Cottet B, Archbold P, Cucurulo T, Fayard JM, Bortolletto J, Thaunat M, Prost T, Chambat P Abstract It has been suggested that an increased posterior tibial slope (PTS) and a narrow notch width index (NWI) increase the risk of anterior cruciate ligament (ACL) injury. The aim of this study was to establish why there are conflicting reports on their significance. A total of fifty patients with a ruptured ACL and 50 patients with an intact ACL were included in the study. The group with ACL rupture had a statistically significantly increased PTS (p < 0.001) and a smaller NWI (p < 0.001) than the control group. When a high PTS and/or a narrow NWI were defined as risk factors for an ACL rupture, 80% of patients had at least one risk factor present; only 24% had both... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5385551 Tue, 01 Nov 2011 04:00:00 +0100 5385551 http://www.medworm.com/index.php?rid=5385550&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22058298%26dopt%3DAbstract Authors: Park JW, Kim YH Abstract The purpose of this prospective, randomised study was to evaluate the clinical and radiological results comparing the identical cemented or cementless NexGen total knee prostheses implanted bilaterally in the same patient. Sequential simultaneous bilateral total knee replacements were performed in 50 patients (100 knees). There were 39 women and 11 men with a mean age of 58.4 years (51 to 67) who received a cemented prosthesis in one knee and a cementless prosthesis in the other. The mean follow-up was 13.6 years (13 to 14). At final review, the mean Knee Society scores (96.2 (82 to 100) versus 97.7 (90 to 100)), the mean Western Ontario and McMaster Universities osteoarthritis index (34.5 (4 to 59) versus 35.6 (5 to 51)), the mean ranges of knee ... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5385550 Tue, 01 Nov 2011 04:00:00 +0100 5385550 http://www.medworm.com/index.php?rid=5385549&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22058299%26dopt%3DAbstract We report the long-term results of the management of neglected chronically infected total knee replacements with a two-stage re-implantation protocol. In 18 of 34 patients (53%) a resistant organism was isolated. All cases were treated by the same surgical team in a specialist centre and had a mean follow-up of 12.1 years (10 to 14). They were evaluated clinically and radiologically using the Knee Society Score (KSS) and the American Knee Society Roentgenographic scoring system, respectively. One patient died after eight years from an unrelated cause and two were lost to follow-up. Three patients (8.8%) developed a recurrent infection for which further surgery was required. The infection was eradicated successfully in 31 patients (91.1%). There was one case of aseptic loosening after 13 ye... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5385549 Tue, 01 Nov 2011 04:00:00 +0100 5385549 http://www.medworm.com/index.php?rid=5385548&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22058300%26dopt%3DAbstract Authors: Lee JK, Choi CH Abstract Bone defects are occasionally encountered during primary total knee replacement (TKR) and cause difficulty in establishing a stable well-aligned bone-implant interface. Between March 1999 and November 2005, 59 knees in 43 patients underwent primary TKR with a metal block augmentation for tibial bone deficiency. In all, six patients (eight knees) died less than four years post-operatively, and four patients (five knees) were lost to follow-up leaving 46 knees in 33 patients available for review at a mean of 78.6 months (62 to 129). The clinical results obtained, including range of movement, American Knee Society and Oxford knee scores, and the Western Ontario and McMaster Universities osteoarthritis index, were good to excellent, with no failures. ... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5385548 Tue, 01 Nov 2011 04:00:00 +0100 5385548 http://www.medworm.com/index.php?rid=5385547&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22058301%26dopt%3DAbstract Authors: Chana R, Salmon L, Waller A, Pinczewski L Abstract We evaluated the safety and efficacy of total knee replacement in patients receiving continuous warfarin therapy. We identified 24 consecutive patients receiving long-term warfarin therapy who underwent total knee replacement between 2006 and 2008 and compared them with a group of age- and gender-matched patients not on long-term anticoagulation. Primary observations were changes in haemoglobin, transfusion rates and complications. Secondary observations were fluctuations in the international normalised ratio (INR) and post-operative range of movement. There was no significant difference between the two groups in pre- or post-operative haemoglobin, incidence of transfusion or incidence of post-operative complications. Ther... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5385547 Tue, 01 Nov 2011 04:00:00 +0100 5385547 http://www.medworm.com/index.php?rid=5385546&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22058302%26dopt%3DAbstract Authors: Maffulli N, Del Buono A, Testa V, Capasso G, Oliva F, Denaro V Abstract This is a prospective analysis on 30 physically active individuals with a mean age of 48.9 years (35 to 64) with chronic insertional tendinopathy of the tendo Achillis. Using a transverse incision, the tendon was debrided and an osteotomy of the posterosuperior corner of the calcaneus was performed in all patients. At a minimum post-operative follow-up of three years, the Victorian Institute of Sports Assessment scale - Achilles tendon scores were significantly improved compared to the baseline status. In two patients a superficial infection of the wound developed which resolved on antibiotics. There were no other wound complications, no nerve related complications, and no secondary avulsions of the t... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5385546 Tue, 01 Nov 2011 04:00:00 +0100 5385546 http://www.medworm.com/index.php?rid=5385545&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22058303%26dopt%3DAbstract This study indicates that caution should be observed in attributing symptoms and functional limitation to the presence of heterotopic ossification in the posterior ankle joint when considering excision of heterotopic bone after total ankle replacement. PMID: 22058303 [PubMed - in process] (Source: The Journal of Bone and Joint Surgery. British volume) The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5385545 Tue, 01 Nov 2011 04:00:00 +0100 5385545 http://www.medworm.com/index.php?rid=5385544&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22058304%26dopt%3DAbstract We examined patient characteristics (age, gender, body mass index, comorbidity), implant fixation (cemented versus uncemented), American Society of Anesthesiologists class and underlying diagnosis. Univariate and multivariable adjusted hazard rates were calculated using Cox regression analysis. A total of 2207 patients underwent 2588 TSAs. Their mean age was 65.0 years (19 to 91) and 1163 (53%) were women; osteoarthritis was the underlying diagnosis in 1640 shoulders (63%). In all, 212 TSAs (8.2%) were revised during the follow-up period. At five, ten and 20 years, survival rates were 94.2% (95% confidence interval (CI) 93.2 to 95.3), 90.2% (95% CI 88.7 to 91.7) and 81.4% (95% CI 78.4 to 84.5), respectively. In multivariable analyses men had a higher hazard ratio of revision of 1.72 (95% ... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5385544 Tue, 01 Nov 2011 04:00:00 +0100 5385544 http://www.medworm.com/index.php?rid=5385543&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22058305%26dopt%3DAbstract In this study, 42 patients with recurrent symptoms after discectomy underwent less invasive posterior lumbar interbody fusion (LI-PLIF). Clinical outcome was measured using the Oswestry Disability Index (ODI), Short Form 36 (SF-36) questionnaires and visual analogue scales for back (VAS-BP) and leg pain (VAS-LP). There was a statistically significant improvement in all outcome measures (p < 0.001). The debate around which procedure is the most effective for these patients remains controversial. Our results show that LI-PLIF is as effective as any other surgical procedure. However, given that it is less invasive, we feel that it should be considered as the preferred option. PMID: 22058305 [PubMed - in process] (Source: The Journal of Bone and Joint Surgery. British volume) The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5385543 Tue, 01 Nov 2011 04:00:00 +0100 5385543 http://www.medworm.com/index.php?rid=5385542&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22058306%26dopt%3DAbstract Authors: Bonner TJ, Eardley WG, Newell N, Masouros S, Matthews JJ, Gibb I, Clasper JC Abstract The aim of this study was to assess the accuracy of placement of pelvic binders and to determine whether circumferential compression at the level of the greater trochanters is the best method of reducing a symphyseal diastasis. Patients were identified by a retrospective review of all pelvic radiographs performed at a military hospital over a period of 30 months. We analysed any pelvic radiograph on which the buckle of the pelvic binder was clearly visible. The patients were divided into groups according to the position of the buckle in relation to the greater trochanters: high, trochanteric or low. Reduction of the symphyseal diastasis was measured in a subgroup of patients with an open-... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5385542 Tue, 01 Nov 2011 04:00:00 +0100 5385542 http://www.medworm.com/index.php?rid=5385541&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22058307%26dopt%3DAbstract This study demonstrates several theoretical disadvantages of the antibiotic-loaded bone cement coloured with methylene blue. PMID: 22058307 [PubMed - in process] (Source: The Journal of Bone and Joint Surgery. British volume) The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5385541 Tue, 01 Nov 2011 04:00:00 +0100 5385541 http://www.medworm.com/index.php?rid=5385540&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22058308%26dopt%3DAbstract Authors: McGovern PD, Albrecht M, G Belani K, Nachtsheim C, Partington PF, Carluke I, Reed MR Abstract We investigated the capacity of patient warming devices to disrupt the ultra-clean airflow system. We compared the effects of two patient warming technologies, forced-air and conductive fabric, on operating theatre ventilation during simulated hip replacement and lumbar spinal procedures using a mannequin as a patient. Infection data were reviewed to determine whether joint infection rates were associated with the type of patient warming device that was used. Neutral-buoyancy detergent bubbles were released adjacent to the mannequin's head and at floor level to assess the movement of non-sterile air into the clean airflow over the surgical site. During simulated hip replacement, b... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5385540 Tue, 01 Nov 2011 04:00:00 +0100 5385540 http://www.medworm.com/index.php?rid=5385539&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22058309%26dopt%3DAbstract Authors: Hoell S, Butschek S, Gosheger G, Dedy N, Dieckmann R, Henrichs M, Daniilidis K, Hardes J Abstract There has been a substantial increase in the number of hip and knee prostheses implanted in recent years, with a consequent increase in the number of revisions required. Total femur replacement (TFR) following destruction of the entire femur, usually after several previous revision operations, is a rare procedure but is the only way of avoiding amputation. Intramedullary femur replacement (IFR) with preservation of the femoral diaphysis is a modification of TFR. Between 1999 and 2010, 27 patients with non-oncological conditions underwent surgery in our department with either IFR (n = 15) or TFR (n = 12) and were included in this study retrospectively. The aim of the study was ... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5385539 Tue, 01 Nov 2011 04:00:00 +0100 5385539 http://www.medworm.com/index.php?rid=5385538&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22058310%26dopt%3DAbstract We present our experience of forearm lengthening in children with various conditions performed by a single surgeon between 1995 and 2009. A total of 19 children with a mean age of 9.8 years (2.1 to 15.9) at the time of surgery had 22 forearm lengthenings using either an Ilizarov/spatial and Ilizarov circular frame or a monolateral external fixator. The patients were divided into two groups: group A, in whom the purpose of treatment was to restore the relationship between the radius and the ulna, and group B, in whom the objective was to gain forearm length. The mean follow-up after removal of the frame was 26 months (13 to 53). There were ten patients (11 forearms) in group A with a mean radioulnar discrepancy of 2.4 cm (1.5 to 3.3) and nine patients (11 forearms) in group B. In group A, t... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5385538 Tue, 01 Nov 2011 04:00:00 +0100 5385538 http://www.medworm.com/index.php?rid=5385537&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22058311%26dopt%3DAbstract Authors: Singhal R, Perry DC, Khan FN, Cohen D, Stevenson HL, James LA, Sampath JS, Bruce CE Abstract Clinical prediction algorithms are used to differentiate transient synovitis from septic arthritis. These algorithms typically include the erythrocyte sedimentation rate (ESR), although in clinical practice measurement of the C-reactive protein (CRP) has largely replaced the ESR. We evaluated the use of CRP in a predictive algorithm. The records of 311 children with an effusion of the hip, which was confirmed on ultrasound, were reviewed (mean age 5.3 years (0.2 to 15.1)). Of these, 269 resolved without intervention and without long-term sequelae and were considered to have had transient synovitis. The remaining 42 underwent arthrotomy because of suspicion of septic arthritis. Infe... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5385537 Tue, 01 Nov 2011 04:00:00 +0100 5385537 http://www.medworm.com/index.php?rid=5385536&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22058312%26dopt%3DAbstract Authors: Wells-Cole E, Griffiths A, Fines D, Zenios M Abstract This retrospective study compared post-operative epidural analgesia (E), continuous peripheral nerve blocks (CPNB) and morphine infusion (M) in 68 children undergoing limb reconstruction with circular frames. The data collected included episodes of severe pain, post-operative duration of analgesia, requirement for top-up analgesia, number of osteotomies, side effects and complications. There was a significant difference between the number of episodes of severe pain in patients receiving a morphine infusion and those receiving epidurals or CPNB (M vs E, p < 0.0001; M vs CPNB, p = 0.018). The CPNB group was associated with the lowest incidence of episodes of severe pain and top-up analgesia. Epidural analgesia was asso... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5385536 Tue, 01 Nov 2011 04:00:00 +0100 5385536 http://www.medworm.com/index.php?rid=5385535&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22058313%26dopt%3DAbstract We describe a symptomatic, progressive restriction of knee flexion due to an accessory quadriceps femoris in a nine-year-old girl. There was no history or findings of post-injection fibrosis, nor any obvious swelling of the affected quadriceps. At arthroscopy no intra-articular pathology was found. An accessory 'quinticeps femoris' was diagnosed by ultrasonography and MRI. Following excision of the muscle and tendon full flexion of the knee was regained and there was no recurrence of the contracture. PMID: 22058313 [PubMed - in process] (Source: The Journal of Bone and Joint Surgery. British volume) The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5385535 Tue, 01 Nov 2011 04:00:00 +0100 5385535 http://www.medworm.com/index.php?rid=5385534&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22058314%26dopt%3DAbstract We present the case of a 15-year-old boy with symptoms due to Klippel-Feil syndrome. Radiographs and CT scans demonstrated basilar impression, occipitalisation of C1 and fusion of C2/C3. MRI showed ventral compression of the medullocervical junction. Skull traction was undertaken pre-operatively to determine whether the basilar impression could be safely reduced. During traction, the C3/C4 junction migrated 12 mm caudally and spasticity resolved. Peri-operative skull-femoral traction enabled posterior occipitocervical fixation without decompression. Following surgery, cervical alignment was restored and spasticity remained absent. One year after surgery he was not limited in his activities. The surgical strategy for patients with basilar impression and congenital anomalies remains controve... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5385534 Tue, 01 Nov 2011 04:00:00 +0100 5385534 http://www.medworm.com/index.php?rid=5385533&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22058315%26dopt%3DAbstract Authors: Khanduja V Abstract The FRCS (Tr & Orth) examination has three components: MCQs, Vivas and Clinical Examination. The Vivas are further divided into four sections comprising Basic Science, Adult Pathology, Hands and Children's Orthopaedics and Trauma. The Clinical Examination section is divided into Upper and Lower limb cases. The aim of this section in the Journal is to focus specifically on the trainees preparing for the exam and to cater to all the sections of the exam. The vision is to complete the cycle of all relevant exam topics (as per the syllabus) in four years. PMID: 22058315 [PubMed - in process] (Source: The Journal of Bone and Joint Surgery. British volume) The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5385533 Tue, 01 Nov 2011 04:00:00 +0100 5385533 http://www.medworm.com/index.php?rid=5287501&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21969423%26dopt%3DAbstract Authors: Yoon RS, Hwang JS, Beebe KS Abstract For over a decade, bisphosphonate administration has evolved and become the cornerstone of the prevention and treatment of fragility fractures. Millions of post-menopausal women have relied on, and continue to depend on, the long-acting, bone density-maintaining pharmaceutical drug to prevent low-energy fractures. In return, we have seen the number of fragility fractures decrease, along with associated costs and emotional benefits. However, with any drug, there are often concerns with side effects and complications, and this unique drug class is seeing one such complication in atypical subtrochanteric femoral fracture, counterproductive to that which it was designed to prevent. This has created concern over long-term bisphosphonate admi... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5287501 Sat, 01 Oct 2011 04:00:00 +0100 5287501 http://www.medworm.com/index.php?rid=5287500&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21969424%26dopt%3DAbstract Authors: Lang JE, Mannava S, Floyd AJ, Goddard MS, Smith BP, M Seyler T, Jinnah RH, Mofidi A Abstract Robots have been used in surgery since the late 1980s. Orthopaedic surgery began to incorporate robotic technology in 1992, with the introduction of ROBODOC, for the planning and performance of total hip replacement. The use of robotic systems has subsequently increased, with promising short-term radiological outcomes when compared with traditional orthopaedic procedures. Robotic systems can be classified into two categories: autonomous and haptic (or surgeon-guided). Passive surgery systems, which represent a third type of technology, have also been adopted recently by orthopaedic surgeons. While autonomous systems have fallen out of favour, tactile systems with technological impr... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5287500 Sat, 01 Oct 2011 04:00:00 +0100 5287500 http://www.medworm.com/index.php?rid=5287499&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21969425%26dopt%3DAbstract Authors: Stafford GH, Villar RN Abstract Femoroacetabular impingement is a well-documented cause of hip pain. There is, however, increasing evidence for the presence of a previously unrecognised impingement-type condition around the hip - ischiofemoral impingement. This is caused by abnormal contact between the lesser trochanter of the femur and the ischium, and presents as atypical groin and/or posterior buttock pain. The symptoms are gradual in onset and may be similar to those of iliopsoas tendonitis, hamstring injury or bursitis. The presence of ischiofemoral impingement may be indicated by pain caused by a combination of hip extension, adduction and external rotation. Magnetic resonance imaging demonstrates inflammation and oedema in the ischiofemoral space and quadratus femor... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5287499 Sat, 01 Oct 2011 04:00:00 +0100 5287499 http://www.medworm.com/index.php?rid=5287498&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21969426%26dopt%3DAbstract Authors: Jung KA, Restrepo C, Hellman M, Abdelsalam H, Parvizi J, Morrison W Abstract We performed a retrospective examination of the anteroposterior pelvic CT scout views of 419 randomly selected patients between April 2004 and August 2009 in order to determine the prevalence of cam-type femoroacetabular deformity in the asymptomatic population. The CT scans had all been undertaken for conditions unrelated to disorders of the hip. The frequency of cam-type femoroacetabular deformity was assessed by measuring the α-angle of each hip on the anteroposterior images. The α-angles were classified according to the Copenhagen Osteoarthritis Study. Among 215 male hips (108 patients) the mean α-angle was 59.12° (37.75° to 103.50°). Of these, a total of 30 hips (13.95%) were defined ... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5287498 Sat, 01 Oct 2011 04:00:00 +0100 5287498 http://www.medworm.com/index.php?rid=5287497&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21969427%26dopt%3DAbstract Authors: Hart AJ, Sabah SA, Bandi AS, Maggiore P, Tarassoli P, Sampson B, A Skinner J Abstract Blood metal ions have been widely used to investigate metal-on-metal hip replacements, but their ability to discriminate between well-functioning and failed hips is not known. The Medicines and Healthcare products Regulatory Agency (MHRA) has suggested a cut-off level of 7 parts per billion (ppb). We performed a pair-matched, case-control study to investigate the sensitivity and specificity of blood metal ion levels for diagnosing failure in 176 patients with a unilateral metal-on-metal hip replacement. We recruited 88 cases with a pre-revision, unexplained failed hip and an equal number of matching controls with a well-functioning hip. We investigated the 7 ppb cut-off level for the maxi... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5287497 Sat, 01 Oct 2011 04:00:00 +0100 5287497 http://www.medworm.com/index.php?rid=5287496&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21969428%26dopt%3DAbstract Authors: Zhang CQ, Sun Y, Chen SB, Jin DX, Sheng JG, Cheng XG, Xu J, Zeng BF Abstract Free vascularised fibular grafting has been reported to be successful for adult patients with osteonecrosis of the femoral head (ONFH). However, its benefit in teenage patients with post-traumatic ONFH has not been determined. We evaluated the effectiveness of free vascularised fibular grafting in the treatment of this condition in children and adolescents. We retrospectively analysed 28 hips in 28 patients in whom an osteonecrotic femoral head had been treated with free vascularised fibular grafting between 2002 and 2008. Their mean age was 16.3 years (13 to 19). The stage of the disease at time of surgery, and results of treatment including pre- and post-operative Harris hip scores, were studied... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5287496 Sat, 01 Oct 2011 04:00:00 +0100 5287496 http://www.medworm.com/index.php?rid=5287494&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21969429%26dopt%3DAbstract This study shows quite good survival and moderate clinical outcome when using a monoblock tapered titanium stem for supporting the regeneration of bone in complex revision hip surgery. PMID: 21969429 [PubMed - in process] (Source: The Journal of Bone and Joint Surgery. British volume) The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5287494 Sat, 01 Oct 2011 04:00:00 +0100 5287494 http://www.medworm.com/index.php?rid=5287492&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21969430%26dopt%3DAbstract Authors: Jameson SS, Reed MR, Dowen D, Deehan DJ, James P, Serrano-Pedraza I Abstract Arthroscopy of the knee is one of the most commonly performed orthopaedic procedures worldwide. Large-volume outcome data have not previously been available for English NHS patients. Prospectively collected admissions data, routinely collected on every English NHS patient, were analysed to determine the rates of complications within 30 days (including re-operation and re-admission), 90-day symptomatic venous thromboembolism and all-cause mortality. There were 301 701 operations performed between 2005 and 2010 - an annual incidence of 9.9 per 10 000 English population. Of these, 16 552 (6%) underwent ligament reconstruction and 106 793 (35%) underwent meniscal surgery. The 30-day re-admission rate ... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5287492 Sat, 01 Oct 2011 04:00:00 +0100 5287492 http://www.medworm.com/index.php?rid=5287491&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21969431%26dopt%3DAbstract Authors: Nicholson JA, Sutherland AG, Smith FW Abstract Abnormal knee kinematics following reconstruction of the anterior cruciate ligament may exist despite an apparent resolution of tibial laxity and functional benefit. We performed upright, weight-bearing MR scans of both knees in the sagittal plane at different angles of flexion to determine the kinematics of the knee following unilateral reconstruction (n = 12). The uninjured knee acted as a control. Scans were performed pre-operatively and at three and six months post-operatively. Anteroposterior tibial laxity was determined using an arthrometer and patient function by validated questionnaires before and after reconstruction. In all the knees with deficient anterior cruciate ligaments, the tibial plateau was displaced anterio... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5287491 Sat, 01 Oct 2011 04:00:00 +0100 5287491 http://www.medworm.com/index.php?rid=5287490&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21969432%26dopt%3DAbstract This study indicates that patella engagement is a key factor associated with patellar subluxation. This suggests that in patients with anterior knee pain with subluxation, resistant to conservative management, surgery directed towards improving patella engagement should be considered. A clinical trial is necessary to test this hypothesis. PMID: 21969432 [PubMed - in process] (Source: The Journal of Bone and Joint Surgery. British volume) The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5287490 Sat, 01 Oct 2011 04:00:00 +0100 5287490 http://www.medworm.com/index.php?rid=5287489&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21969433%26dopt%3DAbstract Authors: Vanbiervliet J, Bellemans J, Verlinden C, Vandenneucker H, Luyckx JP, Labey L, Innocenti B Abstract Complications involving the patellofemoral joint, caused by malrotation of the femoral component during total knee replacement, are an important cause of persistent pain and failure leading to revision surgery. The aim of this study was to determine and quantify the influence of femoral component malrotation on patellofemoral wear, and to determine whether or not there is a difference in the rate of wear of the patellar component when articulated against oxidised zirconium (OxZr) and cobalt-chrome (CoCr) components. An in vitro method was used to simulate patellar maltracking for both materials. Both rates of wear and changes in height on the patellar articular surface were ... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5287489 Sat, 01 Oct 2011 04:00:00 +0100 5287489 http://www.medworm.com/index.php?rid=5287488&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21969434%26dopt%3DAbstract Authors: Bollars P, Bellemans J, Luyckx JP, Innocenti B, Labey L, Victor J Abstract High-flexion total knee replacement (TKR) designs have been introduced to improve flexion after TKR. Although the early results of such designs were promising, recent literature has raised concerns about the incidence of early loosening of the femoral component. We compared the minimum force required to cause femoral component loosening for six high-flexion and six conventional TKR designs in a laboratory experiment. Each TKR design was implanted in a femoral bone model and placed in a loading frame in 135° of flexion. Loosening of the femoral component was induced by moving the tibial component at a constant rate of displacement while maintaining the same angle of flexion. A stereophotogrammetric ... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5287488 Sat, 01 Oct 2011 04:00:00 +0100 5287488 http://www.medworm.com/index.php?rid=5287487&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21969435%26dopt%3DAbstract This study of non-operative functional management of rupture of the tendo Achillis is the largest of its kind in the literature. Our rates of re-rupture are similar to, or better than, those published for operative treatment. We recommend our regime for patients of all ages and sporting demands, but it is essential that they adhere to the protocol. PMID: 21969435 [PubMed - in process] (Source: The Journal of Bone and Joint Surgery. British volume) The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5287487 Sat, 01 Oct 2011 04:00:00 +0100 5287487 http://www.medworm.com/index.php?rid=5287485&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21969436%26dopt%3DAbstract Authors: Hintermann B, Barg A, Knupp M Abstract We undertook a prospective study to analyse the outcome of 48 malunited pronation-external rotation fractures of the ankle in 48 patients (25 females and 23 males) with a mean age of 45 years (21 to 69), treated by realignment osteotomies. The interval between the injury and reconstruction was a mean of 20.2 months (3 to 98). In all patients, valgus malalignment of the distal tibia and malunion of the fibula were corrected. In some patients, additional osteotomies were performed. Patients were reviewed regularly, and the mean follow-up was 7.1 years (2 to 15). Good or excellent results were obtained in 42 patients (87.5%) with the benefit being maintained over time. Congruent ankles without a tilted talus (Takakura stage 0 and 1) were... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5287485 Sat, 01 Oct 2011 04:00:00 +0100 5287485 http://www.medworm.com/index.php?rid=5287484&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21969437%26dopt%3DAbstract Authors: Makwana N, Hossain M, Kumar A, Mbako A Abstract Damage to the dorsomedial branch of the medial dorsal cutaneous nerve is not uncommon in surgery of the hallux. The resultant morbidity can be disabling. In the light of the senior author's operative observation of a sentinel vein, we undertook a cadaver study to investigate the anatomical relationships of the dorsomedial branch of the medial dorsal cutaneous nerve. This established that in 14 of 16 cadaver great toes exposed via a modified medial incision, there is an easily identified vein which runs transversely superficial and proximal to the nerve. In a prospective clinical study of 171 operations on the great toe using this approach, we confirmed this anatomical relationship in 142 procedures (83%), with no complaint of... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5287484 Sat, 01 Oct 2011 04:00:00 +0100 5287484 http://www.medworm.com/index.php?rid=5287483&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21969438%26dopt%3DAbstract We present a retrospective review of a prospectively collected, single-surgeon, consecutive series of 246 patients with a primary frozen shoulder treated by MUA within four weeks of presentation. The mean duration of presenting symptoms was 28 weeks (6 to 156), and time to initial post-operative assessment was 26 days (5 to 126). The Oxford shoulder score (OSS) improved by a mean of 16 points (Wilcoxon signed-ranks test, p < 0.001) with a mean OSS at this time of 43 (7 to 48). Linear regression analysis showed no correlation between the duration of presenting symptoms and OSS at initial follow-up (R2 < 0.001) or peri-operative change in OSS (R2 < 0.001) or OSS at long-term follow-up (R2 < 0.03). Further analysis at a mean of 42 months (8 to 127) revealed a sustained improvement... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5287483 Sat, 01 Oct 2011 04:00:00 +0100 5287483 http://www.medworm.com/index.php?rid=5287482&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21969439%26dopt%3DAbstract Authors: Amirfeyz R, Stanley D Abstract We studied, ten patients (11 elbows) who had undergone 14 allograft-prosthesis composite reconstructions following failure of a previous total elbow replacement with massive structural bone loss. There were nine women and one man with a mean age of 64 years (40 to 84), who were reviewed at a mean of 75 months (24 to 213). One patient developed a deep infection after 26 months and had the allograft-prosthesis composite removed, and two patients had mild pain. The median flexion-extension arc was 100° (95% confidence interval (CI) 76° to 124°). With the exception of the patient who had the infected failure, all the patients could use their elbows comfortably without splints or braces for activities of daily living. The mean Mayo Elbow Perfo... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5287482 Sat, 01 Oct 2011 04:00:00 +0100 5287482 http://www.medworm.com/index.php?rid=5287481&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21969440%26dopt%3DAbstract Authors: Soubeyrand M, Ciais G, Wassermann V, Kalouche I, Gagey O, Biau D, Dumontier C Abstract Disruption of the interosseous membrane is easily missed in patients with Essex-Lopresti syndrome. None of the imaging techniques available for diagnosing disruption of the interosseous membrane are completely dependable. We undertook an investigation to identify whether a simple intra-operative test could be used to diagnose disruption of the interosseous membrane during surgery for fracture of the radial head and to see if the test was reproducible. We studied 20 cadaveric forearms after excision of the radial head, ten with and ten without disruption of the interosseous membrane. On each forearm, we performed the radius joystick test: moderate lateral traction was applied to the radia... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5287481 Sat, 01 Oct 2011 04:00:00 +0100 5287481 http://www.medworm.com/index.php?rid=5287480&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21969441%26dopt%3DAbstract Authors: Lee DH, Kim NH, Park JB, Hwang CJ, Lee CS, Kim YT, Kang SJ, Rhee JM Abstract We performed a prospective study to examine the influence of the patient's position on the location of the abdominal organs, to investigate the possibility of a true lateral approach for transforaminal endoscopic lumbar discectomy. Pre-operative abdominal CT scans were taken in 20 patients who underwent endoscopic lumbar discectomy. Axial images in parallel planes of each intervertebral disc from L1 to L5 were achieved in both supine and prone positions. The most horizontal approach angles possible to avoid injury to the abdominal organs were measured. The results demonstrated that the safe approach angles were significantly less (i.e., more horizontal) in the prone than in the supine position. Ob... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5287480 Sat, 01 Oct 2011 04:00:00 +0100 5287480 http://www.medworm.com/index.php?rid=5287479&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21969442%26dopt%3DAbstract We examined the differences in post-operative functional disability and patient satisfaction between 56 patients who underwent a lumbar fusion at three or more levels for degenerative disease (group I) and 69 patients, matched by age and gender, who had undergone a one or two level fusion (group II). Their mean age was 66 years (49 to 84) and the mean follow-up was 43 months (24 to 65). The mean pre-operative Oswestry Disability Index (ODI) and visual analogue scale (VAS) for back and leg pain, and the mean post-operative VAS were similar in both groups (p > 0.05), but post-operatively the improvement in ODI was significantly less in group I (40.6%) than in group II (49.5%) (p < 0.001). Of the ten ODI items, patients in group I showed significant problems with lifting, sitting, sta... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5287479 Sat, 01 Oct 2011 04:00:00 +0100 5287479 http://www.medworm.com/index.php?rid=5287478&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21969443%26dopt%3DAbstract This study has not shown an increase in peri-operative mortality as a result of cementing the femoral component in patients requiring hip replacement following fracture of the proximal femur. PMID: 21969443 [PubMed - in process] (Source: The Journal of Bone and Joint Surgery. British volume) The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5287478 Sat, 01 Oct 2011 04:00:00 +0100 5287478 http://www.medworm.com/index.php?rid=5287477&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21969444%26dopt%3DAbstract Authors: Wainwright C, Theis JC, Garneti N, Melloh M Abstract We compared revision and mortality rates of 4668 patients undergoing primary total hip and knee replacement between 1989 and 2007 at a University Hospital in New Zealand. The mean age at the time of surgery was 69 years (16 to 100). A total of 1175 patients (25%) had died at follow-up at a mean of ten years post-operatively. The mean age of those who died within ten years of surgery was 74.4 years (29 to 97) at time of surgery. No change in comorbidity score or age of the patients receiving joint replacement was noted during the study period. No association of revision or death could be proven with higher comorbidity scoring, grade of surgeon, or patient gender. We found that patients younger than 50 years at the time of... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5287477 Sat, 01 Oct 2011 04:00:00 +0100 5287477 http://www.medworm.com/index.php?rid=5287476&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21969445%26dopt%3DAbstract Authors: Nguyen AR, Ling J, Antoniou G, Sutherland LM, Cundy PJ, Gomes B Abstract We analysed the incidence of slipped capital femoral epiphysis (SCFE) in South Australia, investigating possible associations between an increased incidence of SCFE, the local indigenous population and the Australian obesity epidemic during the last 20 years. Data including race, age and gender were collected to obtain a profile of the South Australian SCFE patient, and were then compared with epidemiological data for South Australian adolescents. We concluded that the incidence of both obesity and SCFE is increasing. We also noted that the median weight of SCFE patients has increased and the mean age at diagnosis has decreased. Despite weight profiles comparable with those of the general population, ... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5287476 Sat, 01 Oct 2011 04:00:00 +0100 5287476 http://www.medworm.com/index.php?rid=5287464&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21969446%26dopt%3DAbstract We present the case of an 11-year-old boy who developed an arteriovenous fistula between the anterior tibial artery and popliteal vein after closed fractures of the proximal tibia and fibula. The fractures were treated by closed reduction and casting. A fistula was diagnosed 12 weeks after the injury. It was treated by embolisation with coils. Subsequent angiography and ultrasonography confirmed patency of the popliteal vein and anterior and posterior tibial and peroneal arteries, with no residual shunting through the fistula. The fractures healed uneventfully and he returned to full unrestricted activities 21 weeks after his injury. PMID: 21969446 [PubMed - in process] (Source: The Journal of Bone and Joint Surgery. British volume) The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5287464 Sat, 01 Oct 2011 04:00:00 +0100 5287464 http://www.medworm.com/index.php?rid=5287461&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21969447%26dopt%3DAbstract Authors: Lindgren JU, Brismar BH, Wikstrom AC Abstract A 70-year-old man with an uncemented metal-on-polyethylene total hip prosthesis underwent revision arthroplasty 33 months later because of pain, swelling and recurrent dislocation. There appeared to be corrosion and metal release from the prosthetic head, resulting in pseudotumour formation and severe local soft-tissue destruction. The corrosion occurred at the junction between the titanium-molybdenum-zirconium-iron taper and the cobalt-chrome-molybdenum head, but the mechanism was unproven. PMID: 21969447 [PubMed - in process] (Source: The Journal of Bone and Joint Surgery. British volume) The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5287461 Sat, 01 Oct 2011 04:00:00 +0100 5287461 http://www.medworm.com/index.php?rid=5223684&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21911521%26dopt%3DAbstract Authors: Nie YX, Guo J, Knight DJ, Porter DE PMID: 21911521 [PubMed - in process] (Source: The Journal of Bone and Joint Surgery. British volume) The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5223684 Thu, 01 Sep 2011 04:00:00 +0100 5223684 http://www.medworm.com/index.php?rid=5223683&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21911522%26dopt%3DAbstract Authors: Muijs SP, van Erkel AR, Dijkstra PD Abstract Vertebral compression fractures are the most prevalent complication of osteoporosis and percutaneous vertebroplasty (PVP) has emerged as a promising addition to the methods of treating the debilitating pain they may cause. Since PVP was first reported in the literature in 1987, more than 600 clinical papers have been published on the subject. Most report excellent improvements in pain relief and quality of life. However, these papers have been based mostly on uncontrolled cohort studies with a wide variety of inclusion and exclusion criteria. In 2009, two high-profile randomised controlled trials were published in the New England Journal of Medicine which led care providers throughout the world to question the value of PVP. Afte... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5223683 Thu, 01 Sep 2011 04:00:00 +0100 5223683 http://www.medworm.com/index.php?rid=5223682&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21911523%26dopt%3DAbstract Authors: Parsons NR, Hiskens R, Price CL, Achten J, Costa ML Abstract The poor reporting and use of statistical methods in orthopaedic papers has been widely discussed by both clinicians and statisticians. A detailed review of research published in general orthopaedic journals was undertaken to assess the quality of experimental design, statistical analysis and reporting. A representative sample of 100 papers was assessed for compliance to CONSORT and STROBE guidelines and the quality of the statistical reporting was assessed using a validated questionnaire. Overall compliance with CONSORT and STROBE guidelines in our study was 59% and 58% respectively, with very few papers fulfilling all criteria. In 37% of papers patient numbers were inadequately reported; 20% of papers introduce... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5223682 Thu, 01 Sep 2011 04:00:00 +0100 5223682 http://www.medworm.com/index.php?rid=5223681&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21911524%26dopt%3DAbstract We present a systematic review of the results of the Ponseti method of management for congenital talipes equinovarus (CTEV). Our aims were to assess the method, the effects of modifications to the original method, and compare it with other similar methods of treatment. We found 308 relevant citations in the English literature up to 31 May 2010, of which 74 full-text articles met our inclusion criteria. Our results showed that the Ponseti method provides excellent results with an initial correction rate of around 90% in idiopathic feet. Non-compliance with bracing is the most common cause of relapse. The current best practice for the treatment of CTEV is the original Ponseti method, with minimal adjustments being hyperabduction of the foot in the final cast and the need for longer-term brac... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5223681 Thu, 01 Sep 2011 04:00:00 +0100 5223681 http://www.medworm.com/index.php?rid=5223680&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21911525%26dopt%3DAbstract Authors: Leung KS, Ngai WK, Tian W Abstract There is no unified national training system for orthopaedic surgeons in China. With such rapid progress in many aspects of life in China, there is an imminent need for improvement in the training of orthopaedic specialists. Since 2003 the orthopaedic community in Hong Kong has been working in collaboration with their colleagues in mainland China to develop a training system for orthopaedic surgery. We adopted the system from the Royal College of Surgeons of Edinburgh (RCSEd), setting up a trial centre in the Beijing Jishuitan hospital in 2006, with trainers and trainees attaining the standards set by RCSEd and the Hong Kong College of Orthopaedic Surgeons (HKCOS). This trial is ongoing, with the success of two trainees who passed the exi... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5223680 Thu, 01 Sep 2011 04:00:00 +0100 5223680 http://www.medworm.com/index.php?rid=5223679&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21911526%26dopt%3DAbstract Authors: Underwood R, Matthies A, Cann P, Skinner JA, Hart AJ Abstract The Articular Surface Replacement (ASR) hip resurfacing arthroplasty has a failure rate of 12.0% at five years, compared with 4.3% for the Birmingham Hip Resurfacing (BHR). We analysed 66 ASR and 64 BHR explanted metal-on-metal hip replacements with the aim of understanding their mechanisms of failure. We measured the linear wear rates of the acetabular and femoral components and analysed the clinical cause of failure, pre-revision blood metal ion levels and orientation of the acetabular component. There was no significant difference in metal ion levels (chromium, p = 0.82; cobalt, p = 0.40) or head wear rate (p = 0.14) between the two groups. The ASR had a significantly increased rate of wear of the acetabular ... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5223679 Thu, 01 Sep 2011 04:00:00 +0100 5223679 http://www.medworm.com/index.php?rid=5223678&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21911527%26dopt%3DAbstract We examined the effect of BMI on medium-term outcome in a cohort of 1617 patients who underwent a primary total hip replacement for osteoarthritis. These patients were followed prospectively for five years with the outcomes of dislocation, revision, duration of surgery and deep and superficial infection studied, as well as collecting Harris hip scores (HHS) and Short-Form 36 (SF-36) questionnaires pre-operatively and at review. A multivariate analysis was performed to see whether BMI is an independent predictor of poor outcome. We found that patients with a BMI of ? 35 kg/m(2) have a 4.42 times higher rate of dislocation than those with a BMI < 25 kg/m(2). Increasing BMI is also associated with superficial infection and poorer HHS and SF-36 scores at five years. These trends remain sign... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5223678 Thu, 01 Sep 2011 04:00:00 +0100 5223678 http://www.medworm.com/index.php?rid=5223677&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21911528%26dopt%3DAbstract Authors: Biau DJ, Meziane M, Bhumbra RS, Dumaine V, Babinet A, Anract P Abstract The purpose of this study was to define immediate post-operative 'quality' in total hip replacements and to study prospectively the occurrence of failure based on these definitions of quality. The evaluation and assessment of failure were based on ten radiological and clinical criteria. The cumulative summation (CUSUM) test was used to study 200 procedures over a one-year period. Technical criteria defined failure in 17 cases (8.5%), those related to the femoral component in nine (4.5%), the acetabular component in 32 (16%) and those relating to discharge from hospital in five (2.5%). Overall, the procedure was considered to have failed in 57 of the 200 total hip replacements (28.5%). The use of a new ... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5223677 Thu, 01 Sep 2011 04:00:00 +0100 5223677 http://www.medworm.com/index.php?rid=5223676&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21911529%26dopt%3DAbstract We report our experience of 74 THRs performed between 2000 and 2008 in 65 patients with a high dislocated hip without a femoral shortening osteotomy. The mean age of the patients was 55 years (46 to 72) and the mean follow-up was 42 months (12 to 78). All implants were cementless except for one resurfacing hip implant. We attempted to place the acetabular component in the anatomical position in each hip. The mean Harris hip score improved from 53 points (34 to 74) pre-operatively to 86 points (78 to 95) at final follow-up. The mean radiologically determined leg lengthening was 42 mm (30 to 66), and the mean leg-length discrepancy decreased from 36 mm (5 to 56) pre-operatively to 8.5 mm (0 to 18) postoperatively. Although there were four (5%) post-operative femoral nerve palsies, three had ... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5223676 Thu, 01 Sep 2011 04:00:00 +0100 5223676 http://www.medworm.com/index.php?rid=5223675&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21911530%26dopt%3DAbstract Authors: Akiyama H, Yamamoto K, Tsukanaka M, Kawanabe K, Otsuka H, So K, Goto K, Nakamura T Abstract We retrospectively reviewed 40 hips in 36 patients who had undergone acetabular reconstruction using a titanium Kerboull-type acetabular reinforcement device with bone allografts between May 2001 and April 2006. Impacted bone allografts were used for the management of American Academy of Orthopaedic Surgeons Type II defects in 17 hips, and bulk bone allografts together with impacted allografts were used for the management of Type III defects in 23 hips. A total of five hips showed radiological failure at a mean follow-up of 6.7 years (4.5 to 9.3), two of which were infected. The mean pre-operative Merle d'Aubigné score was 10 (5 to 15) vs 13.6 (9 to 18) at the latest follow-up. The... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5223675 Thu, 01 Sep 2011 04:00:00 +0100 5223675 http://www.medworm.com/index.php?rid=5223674&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21911531%26dopt%3DAbstract In this study of 41 patients, we used proteomic, Western blot and immunohistochemical analyses to show that several reactive oxygen species scavenging enzymes are expressed differentially in patients with primary osteoarthritis and those with non-loosening and aseptic loosening after total hip replacement (THR). The patients were grouped as A (n = 16, primary THR), B (n = 10, fixed THR but requiring revision for polyethylene wear) and C (n = 15, requiring revision due to aseptic loosening) to verify the involvement of the identified targets in aseptic loosening. When compared with Groups A and B, Group C patients exhibited significant up-regulation of transthyretin and superoxide dismutase 3, but down-regulation of glutathione peroxidase 2 in their hip synovial fluids. Also, higher levels ... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5223674 Thu, 01 Sep 2011 04:00:00 +0100 5223674 http://www.medworm.com/index.php?rid=5223673&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21911532%26dopt%3DAbstract Authors: Mitsuyasu H, Matsuda S, Fukagawa S, Okazaki K, Tashiro Y, Kawahara S, Nakahara H, Iwamoto Y Abstract We investigated whether the extension gap in total knee replacement (TKR) would be changed when the femoral component was inserted. The extension gap was measured with and without the femoral component in place in 80 patients with varus osteoarthritis undergoing posterior-stabilised TKR. The effect of a post-operative increase in the size of the femoral posterior condyles was also evaluated. The results showed that placement of the femoral component significantly reduced the medial and lateral extension gaps by means of 1.0 mm and 0.9 mm, respectively (p < 0.0001). The extension gap was reduced when a larger femoral component was selected relative to the thickness of the... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5223673 Thu, 01 Sep 2011 04:00:00 +0100 5223673 http://www.medworm.com/index.php?rid=5223672&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21911533%26dopt%3DAbstract Authors: Bonner TJ, Eardley WG, Patterson P, Gregg PJ Abstract Correct positioning and alignment of components during primary total knee replacement (TKR) is widely accepted to be an important predictor of patient satisfaction and implant durability. This retrospective study reports the effect of the post-operative mechanical axis of the lower limb in the coronal plane on implant survival following primary TKR. A total of 501 TKRs in 396 patients were divided into an aligned group with a neutral mechanical axis (± 3°) and a malaligned group where the mechanical axis deviated from neutral by > 3°. At 15 years' follow-up, 33 of 458 (7.2%) TKRs were revised for aseptic loosening. Kaplan-Meier survival analysis showed a weak tendency towards improved survival with restoration of ... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5223672 Thu, 01 Sep 2011 04:00:00 +0100 5223672 http://www.medworm.com/index.php?rid=5223671&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21911534%26dopt%3DAbstract Authors: Babazadeh S, Dowsey MM, Swan JD, Stoney JD, Choong PF Abstract The role of computer-assisted surgery in maintaining the level of the joint in primary knee joint replacement (TKR) has not been well defined. We undertook a blinded randomised controlled trial comparing joint-line maintenance, functional outcomes, and quality-of-life outcomes between patients undergoing computer-assisted and conventional TKR. A total of 115 patients were randomised (computer-assisted, n = 55; conventional, n = 60). Two years post-operatively no significant correlation was found between computer-assisted and conventional surgery in terms of maintaining the joint line. Those TKRs where the joint line was depressed post-operatively improved the least in terms of functional scores. No difference w... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5223671 Thu, 01 Sep 2011 04:00:00 +0100 5223671 http://www.medworm.com/index.php?rid=5223670&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21911535%26dopt%3DAbstract Authors: Stufkens SA, van Bergen CJ, Blankevoort L, van Dijk CN, Hintermann B, Knupp M Abstract It has been suggested that a supramalleolar osteotomy can return the load distribution in the ankle joint to normal. However, due to the lack of biomechanical data, this supposition remains empirical. The purpose of this biomechanical study was to determine the effect of simulated supramalleolar varus and valgus alignment on the tibiotalar joint pressure, in order to investigate its relationship to the development of osteoarthritis. We also wished to establish the rationale behind corrective osteotomy of the distal tibia. We studied 17 cadaveric lower legs and quantified the changes in pressure and force transfer across the tibiotalar joint for various degrees of varus and valgus deformi... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5223670 Thu, 01 Sep 2011 04:00:00 +0100 5223670 http://www.medworm.com/index.php?rid=5223669&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21911536%26dopt%3DAbstract Authors: Melis B, Defranco M, Lädermann A, Molé D, Favard L, Nérot C, Maynou C, Walch G Abstract Radiological changes and differences between cemented and uncemented components of Grammont reverse shoulder arthroplasties (DePuy) were analysed at a mean follow-up of 9.6 years (8 to 12). Of 122 reverse shoulder arthroplasties implanted in five shoulder centres between 1993 and 2000, a total of 68 (65 patients) were available for study. The indications for reversed shoulder arthroplasty were cuff tear arthropathy in 48 shoulders, revision of shoulder prostheses of various types in 11 and massive cuff tear in nine. The development of scapular notching, bony scapular spur formation, heterotopic ossification, glenoid and humeral radiolucencies, stem subsidence, radiological signs of s... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5223669 Thu, 01 Sep 2011 04:00:00 +0100 5223669 http://www.medworm.com/index.php?rid=5223668&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21911537%26dopt%3DAbstract This study investigated the anatomical relationship between the clavicle and its adjacent vascular structures, in order to define safe zones, in terms of distance and direction, for drilling of the clavicle during osteosynthesis using a plate and screws following a fracture. We used reconstructed three-dimensional CT arteriograms of the head, neck and shoulder region. The results have enabled us to divide the clavicle into three zones based on the proximity and relationship of the vascular structures adjacent to it. The results show that at the medial end of the clavicle the subclavian vessels are situated behind it, with the vein intimately related to it. In some scans the vein was opposed to the posterior cortex of the clavicle. At the middle one-third of the clavicle the artery and vein... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5223668 Thu, 01 Sep 2011 04:00:00 +0100 5223668 http://www.medworm.com/index.php?rid=5223667&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21911538%26dopt%3DAbstract Authors: Alpantaki K, Katonis P, Hadjipavlou AG, Spandidos DA, Sourvinos G Abstract It has been proposed that intervertebral disc degeneration might be caused by low-grade infection. The purpose of the present study was to assess the incidence of herpes viruses in intervertebral disc specimens from patients with lumbar disc herniation. A polymerase chain reaction based assay was applied to screen for the DNA of eight different herpes viruses in 16 patients and two controls. DNA of at least one herpes virus was detected in 13 specimens (81.25%). Herpes Simplex Virus type-1 (HSV-1) was the most frequently detected virus (56.25%), followed by Cytomegalovirus (CMV) (37.5%). In two patients, co-infection by both HSV-1 and CMV was detected. All samples, including the control specimens, w... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5223667 Thu, 01 Sep 2011 04:00:00 +0100 5223667 http://www.medworm.com/index.php?rid=5223666&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21911539%26dopt%3DAbstract Authors: Wähnert D, Windolf M, Brianza S, Rothstock S, Radtke R, Brighenti V, Schwieger K Abstract We investigated the static and cyclical strength of parallel and angulated locking plate screws using rigid polyurethane foam (0.32 g/cm(3)) and bovine cancellous bone blocks. Custom-made stainless steel plates with two conically threaded screw holes with different angulations (parallel, 10° and 20° divergent) and 5 mm self-tapping locking screws underwent pull-out and cyclical pull and bending tests. The bovine cancellous blocks were only subjected to static pull-out testing. We also performed finite element analysis for the static pull-out test of the parallel and 20° configurations. In both the foam model and the bovine cancellous bone we found the significantly highest pull-ou... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5223666 Thu, 01 Sep 2011 04:00:00 +0100 5223666 http://www.medworm.com/index.php?rid=5223665&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21911540%26dopt%3DAbstract Authors: Clement ND, Macdonald D, Howie CR, Biant LC Abstract Primary arthroplasty may be denied to very elderly patients based upon the perceived outcome and risks associated with surgery. This prospective study compared the outcome, complications, and mortality of total hip (TKR) and total knee replacement (TKR) in a prospectively selected group of patients aged ≥ 80 years with that of a control group aged between 65 and 74 years. There were 171 and 495 THRs and 185 and 492 TKRs performed in the older and control groups, respectively. No significant difference was observed in the mean improvement of Oxford hip and knee scores between the groups at 12 months (0.98, (95% confidence interval (CI) -0.66 to 2.95), p = 0.34 and 1.15 (95% CI -0.65 to 2.94), p = 0.16, respectively). Th... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5223665 Thu, 01 Sep 2011 04:00:00 +0100 5223665 http://www.medworm.com/index.php?rid=5223664&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21911541%26dopt%3DAbstract Authors: Pakos EE, Grimer RJ, Peake D, Spooner D, Carter SR, Tillman RM, Abudu S, Jeys L Abstract We aimed to identify the incidence, outcome and prognostic factors associated with spindle cell sarcomas of bone (SCSB). We studied 196 patients with a primary non-metastatic tumour treated with the intent to cure. The results were compared with those of osteosarcoma patients treated at our hospital during the same period. The overall incidence of SCSB was 7.8% of all patients with a primary bone sarcoma. The five- and ten-year survival rates were 67.0% and 60.0%, respectively, which were better than those of patients with osteosarcoma treated over the same period. All histological subtypes had similar outcomes. On univariate analysis, factors that were significantly associated with de... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5223664 Thu, 01 Sep 2011 04:00:00 +0100 5223664 http://www.medworm.com/index.php?rid=5223663&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21911542%26dopt%3DAbstract We present a rare case of osteoradionecrosis affecting the L5 and S1 vertebral bodies in a 58-year-old woman who presented with low back pain 25 years after undergoing a hysterectomy with adjuvant radiotherapy for cancer of the cervix. PMID: 21911542 [PubMed - in process] (Source: The Journal of Bone and Joint Surgery. British volume) The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5223663 Thu, 01 Sep 2011 04:00:00 +0100 5223663 http://www.medworm.com/index.php?rid=5223662&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21911543%26dopt%3DAbstract We report a case of spontaneous compartment syndrome of the foot presenting with severe unremitting pain. The diagnosis was supported by measurements of compartment pressures and the symptoms resolved after surgical decompression. Spontaneous compartment syndrome in the leg has been described in a small number of cases, but there has been no previous report involving the foot. We believe that this case highlights the importance of suspecting a spontaneous compartment syndrome of the foot if the appropriate symptoms are present but there is no clear cause. We also believe that compartment pressure measurement assists in the decision to undertake surgical decompression. PMID: 21911543 [PubMed - in process] (Source: The Journal of Bone and Joint Surgery. British volume) The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5223662 Thu, 01 Sep 2011 04:00:00 +0100 5223662 http://www.medworm.com/index.php?rid=5223661&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21911544%26dopt%3DAbstract We present the longest known follow-up of a Smith-Petersen Vitallium mould arthroplasty. PMID: 21911544 [PubMed - in process] (Source: The Journal of Bone and Joint Surgery. British volume) The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5223661 Thu, 01 Sep 2011 04:00:00 +0100 5223661 http://www.medworm.com/index.php?rid=5223660&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21911545%26dopt%3DAbstract Authors: Khanduja V PMID: 21911545 [PubMed - in process] (Source: The Journal of Bone and Joint Surgery. British volume) The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5223660 Thu, 01 Sep 2011 04:00:00 +0100 5223660 http://www.medworm.com/index.php?rid=5078165&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21768619%26dopt%3DAbstract Authors: Fisher J Bioengineering reasons for increased wear and failure of metal-on-metal (MoM) bearings in hip prostheses have been described. Low wear occurs in MoM hips when the centre of the femoral head is concentric with the centre of the acetabular component and the implants are correctly positioned. Translational or rotational malpositioning of the components can lead to the contact-patch of the femoral component being displaced to the rim of the acetabular component, resulting in a ten- to 100-fold increase in wear and metal ion levels. This may cause adverse tissue reactions, loosening of components and failure of the prosthesis. PMID: 21768619 [PubMed - in process] (Source: The Journal of Bone and Joint Surgery. British volume) The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5078165 Sat, 30 Jul 2011 10:47:39 +0100 5078165 http://www.medworm.com/index.php?rid=5078164&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21768620%26dopt%3DAbstract Authors: Jones HW, Beckles VL, Akinola B, Stevenson AJ, Harrison WJ From a global point of view, chronic haematogenous osteomyelitis in children remains a major cause of musculoskeletal morbidity. We have reviewed the literature with the aim of estimating the scale of the problem and summarising the existing research, including that from our institution. We have highlighted areas where well-conducted research might improve our understanding of this condition and its treatment. PMID: 21768620 [PubMed - in process] (Source: The Journal of Bone and Joint Surgery. British volume) The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5078164 Sat, 30 Jul 2011 10:47:34 +0100 5078164 http://www.medworm.com/index.php?rid=5078163&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21768621%26dopt%3DAbstract Authors: Langton DJ, Jameson SS, Joyce TJ, Gandhi JN, Sidaginamale R, Mereddy P, Lord J, Nargol AV There is widespread concern regarding the incidence of adverse soft-tissue reactions after metal-on-metal (MoM) hip replacement. Recent National Joint Registry data have shown clear differences in the rates of failure of different designs of hip resurfacing. Our aim was to update the failure rates related to metal debris for the Articular Surface Replacement (ASR). A total of 505 of these were implanted. Kaplan-Meier analysis showed a failure rate of 25% at six years for the ASR resurfacing and of 48.8% for the ASR total hip replacement (THR). Of 257 patients with a minimum follow-up of two years, 67 (26.1%) had a serum cobalt concentration which was greater than 7 μg/l. Co-ordinate meas... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5078163 Sat, 30 Jul 2011 10:47:29 +0100 5078163 http://www.medworm.com/index.php?rid=5078162&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21768622%26dopt%3DAbstract Authors: Stafford GH, Islam SU, Witt JD Ceramic-on-ceramic bearings in hip replacement have low rates of wear and are increasingly being used in young adults. Our aim was to determine the incidence of audible phenomena or other bearing-related complications. We retrospectively analysed 250 ceramic-on-ceramic hip replacements in 224 patients which had been implanted between April 2000 and December 2007. The mean age of the patients at operation was 44 years (14 to 83) and all the operations were performed using the same surgical technique at a single centre. At a mean follow-up of 59 months (24 to 94), the mean Oxford hip score was 40.89 (11 to 48). There were six revisions, three of which were for impingement-related complications. No patient reported squeaking, but six described grind... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5078162 Sat, 30 Jul 2011 10:47:24 +0100 5078162 http://www.medworm.com/index.php?rid=5078161&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21768623%26dopt%3DAbstract Authors: Kalteis T, Sendtner E, Beverland D, Archbold PA, Hube R, Schuster T, Renkawitz T, Grifka J Orientation of the native acetabular plane as defined by the transverse acetabular ligament (TAL) and the posterior labrum was measured intra-operatively using computer-assisted navigation in 39 hips. In order to assess the influence of alignment on impingement, the range of movement was calculated for that defined by the TAL and the posterior labrum and compared with a standard acetabular component position (abduction 45°/anteversion 15°). With respect to the registration of the plane defined by the TAL and the posterior labrum, there was moderate interobserver agreement (r = 0.64, p < 0.001) and intra-observer reproducibility (r = 0.73, p < 0.001). The mean acetabular component... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5078161 Sat, 30 Jul 2011 10:47:19 +0100 5078161 http://www.medworm.com/index.php?rid=5078160&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21768624%26dopt%3DAbstract This study shows that patients without advanced degenerative changes in the hip can achieve significant improvement in their symptoms after arthroscopic treatment of femoroacetabular impingement. Where appropriate, labral repair provides a superior result to labral resection. PMID: 21768624 [PubMed - in process] (Source: The Journal of Bone and Joint Surgery. British volume) The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5078160 Sat, 30 Jul 2011 10:47:14 +0100 5078160 http://www.medworm.com/index.php?rid=5078159&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21768625%26dopt%3DAbstract Authors: Periasamy K, Watson WS, Mohammed A, Murray H, Walker B, Patil S, Meek RM The ideal acetabular component is characterised by reliable, long-term fixation with physiological loading of bone and a low rate of wear. Trabecular metal is a porous construct of tantalum which promotes bony ingrowth, has a modulus of elasticity similar to that of cancellous bone, and should be an excellent material for fixation. Between 2004 and 2006, 55 patients were randomised to receive either a cemented polyethylene or a monobloc trabecular metal acetabular component with a polyethylene articular surface. We measured the peri-prosthetic bone density around the acetabular components for up to two years using dual-energy x-ray absorptiometry. We found evidence that the cemented acetabular component l... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5078159 Sat, 30 Jul 2011 10:47:09 +0100 5078159 http://www.medworm.com/index.php?rid=5078158&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21768626%26dopt%3DAbstract Authors: Avery PP, Baker RP, Walton MJ, Rooker JC, Squires B, Gargan MF, Bannister GC We reviewed the seven- to ten-year results of our previously reported prospective randomised controlled trial comparing total hip replacement and hemiarthroplasty for the treatment of displaced intracapsular fracture of the femoral neck. Of our original study group of 81 patients, 47 were still alive. After a mean follow up of nine years (7 to 10) overall mortality was 32.5% and 51.2% after total hip replacement and hemiarthroplasty, respectively (p = 0.09). At 100 months postoperatively a significantly greater proportion of hemiarthroplasty patients had died (p = 0.026). Three hips dislocated following total hip replacement and none after hemiarthroplasty. In both the total hip replacement and hemiar... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5078158 Sat, 30 Jul 2011 10:47:05 +0100 5078158 http://www.medworm.com/index.php?rid=5078157&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21768627%26dopt%3DAbstract Authors: Putzer D, Mayr E, Haid C, Reinthaler A, Nogler M In revision total hip replacement, bone loss can be managed by impacting porous bone chips. In order to guarantee sufficient mechanical strength, the bone chips have to be compacted. The aim of this study was to determine in an in vitro simulation whether the use of a pneumatic hammer leads to higher primary stability than manual impaction. Bone mass characteristics were measured by force and distance variation of a penetrating punch, which was lowered into a plastic cup filled with bone chips. From these measurements bulk density, contact stiffness, impaction hardness and penetration resistance were calculated for different durations of impaction. We found that the pneumatic method reached higher values of impaction hardness, c... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5078157 Sat, 30 Jul 2011 10:47:00 +0100 5078157 http://www.medworm.com/index.php?rid=5078156&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21768628%26dopt%3DAbstract Authors: van Jonbergen HP, Scholtes VA, van Kampen A, Poolman RW The efficacy of circumpatellar electrocautery in reducing the incidence of post-operative anterior knee pain is unknown. We conducted a single-centre, outcome-assessor and patient-blinded, parallel-group, randomised, controlled trial to compare circumpatellar electrocautery with no electrocautery in total knee replacement in the absence of patellar resurfacing. Patients requiring knee replacement for primary osteoarthritis were randomly assigned circumpatellar electrocautery (intervention group) or no electrocautery (control group). The primary outcome measure was the incidence of anterior knee pain. A secondary measure was the standardised clinical and patient-reported outcomes determined by the American Knee Society sco... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5078156 Sat, 30 Jul 2011 10:46:55 +0100 5078156 http://www.medworm.com/index.php?rid=5078155&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21768629%26dopt%3DAbstract Authors: Zaffagnini S, Bonanzinga T, Muccioli GM, Giordano G, Bruni D, Bignozzi S, Lopomo N, Marcacci M We have shown in a previous study that patients with combined lesions of the anterior cruciate (ACL) and medial collateral ligaments (MCL) had similar anteroposterior (AP) but greater valgus laxity at 30° after reconstruction of the ACL when compared with patients who had undergone reconstruction of an isolated ACL injury. The present study investigated the same cohort of patients after a minimum of three years to evaluate whether the residual valgus laxity led to a poorer clinical outcome. Each patient had undergone an arthroscopic double-bundle ACL reconstruction using a semitendinosus-gracilis graft. In the combined ACL/MCL injury group, the grade II medial collateral ligament in... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5078155 Sat, 30 Jul 2011 10:46:47 +0100 5078155 http://www.medworm.com/index.php?rid=5078154&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21768630%26dopt%3DAbstract Authors: Tanavalee A, Honsawek S, Rojpornpradit T, Sakdinakiattikoon M, Ngarmukos S We compared inflammation in the knee after total knee replacement (TKR) for primary osteoarthritis between two groups of patients undergoing joint replacement with and without synovectomy. A total of 67 patients who underwent unilateral TKR were randomly divided into group I, TKR without synovectomy, and group II, TKR with synovectomy. Clinical outcomes, serial serum inflammatory markers (including interleukin-6 (IL-6), CRP and ESR) and the difference in temperature of the skin of the knee, compared with the contralateral side, were sequentially evaluated until 26 weeks after surgery. Pre-operatively, there were no statistically different clinical parameters between groups I and II. At the 26-week follo... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5078154 Sat, 30 Jul 2011 10:46:42 +0100 5078154 http://www.medworm.com/index.php?rid=5078153&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21768631%26dopt%3DAbstract Authors: Keating JF, Will EM A total of 80 patients with an acute rupture of tendo Achillis were randomised to operative repair using an open technique (39 patients) or non-operative treatment in a cast (41 patients). Patients were followed up for one year. Outcome measures included clinical complications, range of movement of the ankle, the Short Musculoskeletal Function Assessment (SMFA), and muscle function dynamometry evaluating dorsiflexion and plantar flexion of the ankle. The primary outcome measure was muscle dynamometry. Re-rupture occurred in two of 37 patients (5%) in the operative group and four of 39 (10%) in the non-operative group, which was not statistically significant (p = 0.68). There was a slightly greater range of plantar flexion and dorsiflexion of the ankle in th... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5078153 Sat, 30 Jul 2011 10:46:37 +0100 5078153 http://www.medworm.com/index.php?rid=5078152&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21768632%26dopt%3DAbstract Authors: Choi KJ, Lee HS, Yoon YS, Park SS, Kim JS, Jeong JJ, Choi YR We reviewed the outcome of distal chevron metatarsal osteotomy without tendon transfer in 19 consecutive patients (19 feet) with a hallux varus deformity following surgery for hallux valgus. All patients underwent distal chevron metatarsal osteotomy with medial displacement and a medial closing wedge osteotomy along with a medial capsular release. The mean hallux valgus angle improved from -11.6° pre-operatively to 4.7° postoperatively, the mean first-second intermetatarsal angle improved from -0.3° to 3.3° and the distal metatarsal articular angle from 9.5° to 2.3° and the first metatarsophalangeal joints became congruent post-operatively in all 19 feet. The mean relative length ratio of the metatarsus decreas... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5078152 Sat, 30 Jul 2011 10:46:32 +0100 5078152 http://www.medworm.com/index.php?rid=5078151&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21768633%26dopt%3DAbstract Authors: Tauchi R, Imagama S, Kanemura T, Yoshihara H, Sato K, Deguchi M, Kamiya M, Ishiguro N We reviewed seven children with torticollis due to refractory atlanto-axial rotatory fixation who were treated in a halo vest. Pre-operative three-dimensional CT and sagittal CT imaging showed deformity of the superior articular process of C2 in all patients. The mean duration of halo vest treatment was 67 days (46 to 91). The mean follow-up was 34 months (8 to 73); at the latest review six patients demonstrated remodelling of the deformed articular process. The other child, who had a more severe deformity, required C1-2 fusion. We suggest that patients with atlanto-axial rotatory fixation who do not respond to conservative treatment and who have deformity of the superior articular process of... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5078151 Sat, 30 Jul 2011 10:46:27 +0100 5078151 http://www.medworm.com/index.php?rid=5078150&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21768634%26dopt%3DAbstract Authors: Lizaur A, Sanz-Reig J, Gonzalez-Parreño S The purpose of this study was to review the long-term outcomes of a previously reported prospective series of 46 type III acromioclavicular dislocations. These were treated surgically with temporary fixation of the acromioclavicular joint with wires, repair of the acromioclavicular ligaments, and overlapped suture of the deltoid and trapezius muscles. Of the 46 patients, one had died, four could not be traced, and three declined to return for follow-up, leaving 38 patients in the study. There were 36 men and two women, with a mean age at follow-up of 57.3 years (41 to 71). The mean follow-up was 24.2 years (21 to 26). Patients were evaluated using the Imatani and University of California, Los Angeles (UCLA) scoring systems. Their subj... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5078150 Sat, 30 Jul 2011 10:46:22 +0100 5078150 http://www.medworm.com/index.php?rid=5078149&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21768635%26dopt%3DAbstract We report our experience of stabilising these fractures using polymethylmethacrylate and non-locking plates. We undertook a retrospective review over 20 years of patients treated at a tertiary musculoskeletal oncology centre. Those who had undergone surgery for an impending or completed pathological humeral fracture with a diagnosis of metastatic disease or myeloma were identified from our database. There were 63 patients (43 men, 20 women) in the series with a mean age of 63 years (39 to 87). All had undergone intralesional curettage of the tumour followed by fixation with intramedullary polymethylmethacrylate and plating. Complications occurred in 14 patients (22.2%) and seven (11.1%) required re-operation. At the latest follow-up, 47 patients (74.6%) were deceased and 16 (25.4%) were li... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5078149 Sat, 30 Jul 2011 10:46:17 +0100 5078149 http://www.medworm.com/index.php?rid=5078148&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21768636%26dopt%3DAbstract Authors: Ruggieri P, Mavrogenis AF, Guerra G, Mercuri M We retrospectively studied 14 patients with proximal and diaphyseal tumours and disappearing bone (Gorham's) disease of the humerus treated with wide resection and reconstruction using an allograft-resurfacing composite (ARC). There were ten women and four men, with a mean age of 35 years (8 to 69). At a mean follow-up of 25 months (10 to 89), two patients had a fracture of the allograft. In one of these it was revised with a similar ARC and in the other with an intercalary prosthesis. A further patient had an infection and a fracture of the allograft that was revised with a megaprosthesis. In all patients with an ARC, healing of the ARC-host bone interface was observed. One patient had failure of the locking mechanism of the tota... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5078148 Sat, 30 Jul 2011 10:46:10 +0100 5078148 http://www.medworm.com/index.php?rid=5078147&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21768637%26dopt%3DAbstract Authors: Ji T, Guo W, Yang RL, Tang S, Sun X We set out to determine the impact of surgery on quality of life and function in patients who had undergone surgery for symptomatic peri-acetabular metastases. From a prospective database we retrospectively reviewed 46 consecutive patients who had been treated operatively between June 2003 and June 2009. The mean age of the patients was 56.4 years (20 to 73) and the mean post-operative follow-up was 19.2 months (4 to 70). Functional evaluation and quality-of-life assessments were performed. At the most recent follow-up, 26 patients (56.5%) were alive. Their median survival time was 25.0 months. Ten major postoperative complications had occurred in eight patients (17.4%). The mean post-operative Musculoskeletal Tumor Society score (MSTS 93) w... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5078147 Sat, 30 Jul 2011 10:46:02 +0100 5078147 http://www.medworm.com/index.php?rid=5078146&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21768638%26dopt%3DAbstract Authors: Sewell MD, Hanna SA, McGrath A, Aston WJ, Blunn GW, Pollock RC, Skinner JA, Cannon SR, Briggs TW The best method of reconstruction after resection of malignant tumours of the tibial diaphysis is unknown. In the absence of any long-term studies analysing the results of intercalary endoprosthetic replacement, we present a retrospective review of 18 patients who underwent limb salvage using a tibial diaphyseal endoprosthetic replacement following excision of a malignant bone tumour. There were ten men and eight women with a mean age of 42.5 years (16 to 76). Mean follow-up was 58.5 months (20 to 141) for all patients and 69.3 months (20 to 141) for the 12 patients still alive. Cumulative patient survival was 59% (95% confidence interval (CI) 32 to 84) at five years. Implant survi... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5078146 Sat, 30 Jul 2011 10:45:56 +0100 5078146 http://www.medworm.com/index.php?rid=5078145&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21768639%26dopt%3DAbstract We describe 22 cases of bizarre parosteal osteochondromatous proliferation, or Nora's lesion. These are surface-based osteocartilaginous lesions typically affecting the hands and feet. All patients were identified from the records of a regional bone tumour unit and were treated between 1985 and 2009. Nine lesions involved the metacarpals, seven the metatarsals, one originated from a sesamoid bone of the foot and five from long bones (radius, ulna, tibia, and femur in two). The mean age of the patients was 31.8 years (6 to 66), with 14 men and eight women. Diagnosis was based on the radiological and histological features. The initial surgical treatment was excision in 21 cases and amputation of a toe in one. The mean follow-up was for 32 months (12 to 162). Recurrence occurred in six patien... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5078145 Sat, 30 Jul 2011 10:45:50 +0100 5078145 http://www.medworm.com/index.php?rid=5078144&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21768640%26dopt%3DAbstract Authors: Chandrasenan J, Klezl Z, Bommireddy R, Calthorpe D We retrospectively reviewed the records of 16 children treated for spondylodiscitis at our hospital between 2000 and 2007. The mean follow-up was 24 months (12 to 38). There was a mean delay in diagnosis in hospital of 25 days in the ten children aged less than 24 months. At presentation only five of the 16 children presented with localising signs and symptoms. Common presenting symptoms were a refusal to walk or sit in nine children, unexplained fever in six, irritability in five, and limping in four. Plain radiography showed changes in only seven children. The ESR was the most useful investigation when following the clinical course of the disease. Positive blood cultures were obtained in seven children with Staphylococcus au... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5078144 Sat, 30 Jul 2011 10:45:43 +0100 5078144 http://www.medworm.com/index.php?rid=5078143&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21768641%26dopt%3DAbstract Authors: Thaler M, Biedermann R, Lair J, Krismer M, Landauer F Between 1978 and 1997 all newborns in the Austrian province of Tyrol were reviewed regarding hip dysplasia and related surgery. This involved a mean of 8257 births per year (7766 to 8858). Two observation periods were determined: 1978 to 1982 (clinical examination alone) and 1993 to 1997 (clinical examination and universal ultrasound screening). A retrospective analysis compared the number and cost of interventions due to hip dysplasia in three patient age groups: A, 0 to < 1.5 years; B, ≥ 1.5 to < 15 years; and C, ≥ 15 to < 35 years. In group A, there was a decrease in hip reductions from a mean of 25.2 (sd 2.8) to 7.0 (sd 1.4) cases per year. In group B, operative procedures decreased from a mean of 17.8 (sd ... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5078143 Sat, 30 Jul 2011 10:45:35 +0100 5078143 http://www.medworm.com/index.php?rid=5078142&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21768642%26dopt%3DAbstract Authors: Monsell FP, McBride AR, Barnes JR, Kirubanandan R Progressive angular deformity of an extremity due to differential physeal arrest is the most common late orthopaedic sequela following meningococcal septicaemia in childhood. A total of ten patients (14 ankles) with distal tibial physeal arrest as a consequence of meningococcal septicaemia have been reviewed. Radiological analysis of their ankles has demonstrated a distinct pattern of deformity. In 13 of 14 cases the distal fibular physis was unaffected and continued distal fibular growth contributed to a varus deformity. We recommend that surgical management should take account of this consistent finding during the correction of these deformities. PMID: 21768642 [PubMed - in process] (Source: The Journal of Bone and Joint ... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5078142 Sat, 30 Jul 2011 10:45:30 +0100 5078142 http://www.medworm.com/index.php?rid=5078141&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21768643%26dopt%3DAbstract Authors: Schindeler A, Birke O, Yu NY, Morse A, Ruys A, Baldock PA, Little DG Congenital pseudarthrosis of the tibia is an uncommon manifestation of neurofibromatosis type 1 (NF1), but one that remains difficult to treat due to anabolic deficiency and catabolic excess. Bone grafting and more recently recombinant human bone morphogenetic proteins (rhBMPs) have been identified as pro-anabolic stimuli with the potential to improve the outcome after surgery. As an additional pharmaceutical intervention, we describe the combined use of rhBMP-2 and the bisphosphonate zoledronic acid in a mouse model of NF1-deficient fracture repair. Fractures were generated in the distal tibiae of neurofibromatosis type 1-deficient (Nf1(+/-)) mice and control mice. Fractures were open and featured periosteal... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5078141 Sat, 30 Jul 2011 10:45:25 +0100 5078141 http://www.medworm.com/index.php?rid=5078140&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21768644%26dopt%3DAbstract We describe the management of a 36-year-old man with a high-pressure grease-gun injection injury to his neck causing a cervical spinal cord injury. He developed severe motor and sensory changes which were relieved by surgical removal of the grease through anterior and posterior approaches. PMID: 21768644 [PubMed - in process] (Source: The Journal of Bone and Joint Surgery. British volume) The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5078140 Sat, 30 Jul 2011 10:45:20 +0100 5078140 http://www.medworm.com/index.php?rid=5078139&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21768645%26dopt%3DAbstract Authors: Khanduja V PMID: 21768645 [PubMed - in process] (Source: The Journal of Bone and Joint Surgery. British volume) The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=5078139 Sat, 30 Jul 2011 10:45:14 +0100 5078139 http://www.medworm.com/index.php?rid=4983534&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21705553%26dopt%3DAbstract Authors: Tsirikos AI, Jain AK This review of the literature presents the current understanding of Scheuermann's kyphosis and investigates the controversies concerning conservative and surgical treatment. There is considerable debate regarding the pathogenesis, natural history and treatment of this condition. A benign prognosis with settling of symptoms and stabilisation of the deformity at skeletal maturity is expected in most patients. Observation and programmes of exercise are appropriate for mild, flexible, non-progressive deformities. Bracing is indicated for a moderate deformity which spans several levels and retains flexibility in motivated patients who have significant remaining spinal growth. The loss of some correction after the completion of bracing with recurrent anterior ve... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=4983534 Thu, 30 Jun 2011 12:04:22 +0100 4983534 http://www.medworm.com/index.php?rid=4983532&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21705554%26dopt%3DAbstract Authors: Keating JF, White TO This brief annotation summarises the particular contributions made by the annual Edinburgh International Trauma Symposium in various areas of research into aspects of orthopaedic trauma and the management of acutely injured patients, during the 25 years since its establishment. PMID: 21705554 [PubMed - in process] (Source: The Journal of Bone and Joint Surgery. British volume) The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=4983532 Thu, 30 Jun 2011 12:04:12 +0100 4983532 http://www.medworm.com/index.php?rid=4983531&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21705555%26dopt%3DAbstract We present the development and results of a nationwide, prospective, observational follow-up programme including patient-reported outcome measures (PROMs) for the Swedish Hip Arthroplasty Register. The programme started in 2002 and has gradually expanded to include all units performing total hip replacement in Sweden. The self-administered PROMs protocol comprises the EQ-5D instrument, the Charnley class categorisation and visual analogue scales for pain and satisfaction. These current analyses include 34 960 total hip replacements with complete pre- and one-year post-operative questionnaires. Patients eligible for total hip replacement generally report low health-related quality of life and suffer from pain. One year post-operatively the mean EQ-5D index increased to above the level of an... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=4983531 Thu, 30 Jun 2011 12:04:06 +0100 4983531 http://www.medworm.com/index.php?rid=4983530&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21705556%26dopt%3DAbstract Authors: Jameson SS, Lees D, James P, Serrano-Pedraza I, Partington PF, Muller SD, Meek RM, Reed MR Increased femoral head size may reduce dislocation rates following total hip replacement. The National Joint Registry for England and Wales has highlighted a statistically significant increase in the use of femoral heads ≥ 36 mm in diameter from 5% in 2005 to 26% in 2009, together with an increase in the use of the posterior approach. The aim of this study was to determine whether rates of dislocation have fallen over the same period. National data for England for 247 546 procedures were analysed in order to determine trends in the rate of dislocation at three, six, 12 and 18 months after operation during this time. The 18-month revision rates were also examined. Between 2005 and 2009 ... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=4983530 Thu, 30 Jun 2011 12:04:01 +0100 4983530 http://www.medworm.com/index.php?rid=4983529&cid=s_37685_31_f&fid=37685&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21705557%26dopt%3DAbstract Authors: Cobb JP, Davda K, Ahmad A, Harris SJ, Masjedi M, Hart AJ Large-head metal-on-metal total hip replacement has a failure rate of almost 8% at five years, three times the revision rate of conventional hip replacement. Unexplained pain remains a feature of this type of arthroplasty. All designs of the femoral component of large-head metal-on-metal total hip replacements share a unique characteristic: a subtended angle of 120° defining the proportion of a sphere that the head represents. Using MRI, we measured the contact area of the iliopsoas tendon on the femoral head in sagittal reconstruction of 20 hips of patients with symptomatic femoroacetabular impingement. We also measured the articular extent of the femoral head on 40 normal hips and ten with cam-type deformities. Finall... The Journal of Bone and Joint Surgery. British volume journals http://www.medworm.com/rss/comments.php?id=4983529 Thu, 30 Jun 2011 12:03:57 +0100 4983529