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Surgical treatment of an acetabular fracture and labral tear with suture anchors in a 10-year-old child.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This article presents a case of a 10-year-old boy with a right acetabular fracture secondary to a direct blow to the pelvis and back. He sustained a right hip dislocation and transverse with posterior wall acetabular fracture with a nonconcentric hip joint after reduction. The fracture was treated with right labral and articular segment absorbable suture tie-down and relocation of the right hip into an anatomical position. At 32-month follow-up, the patient had returned to activities of daily living, he had a normal and symmetric gait pattern, and no pain on hip adduction, flexion, or internal rotation. This technique redu...
Source: Orthopedics - November 1, 2009 Category: Orthopaedics Authors: Mormor M, Matityahu A Tags: Orthopedics Source Type: journals

Acetabular cup malalignment after total hip resurfacing arthroplasty: a case for elective revision?Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This article describes the clinical course of a patient with a resurfacing implant in a poor cup position in combination with elevated serum metal ions prior to implant failure. Following resurfacing, the patient had substantial improvement from baseline in pain and functional status. Postoperative radiographs indicated the acetabular cup in an abducted and excessively anteverted position. The acetabular component ultimately failed after 4.5 years and a traditional total hip arthroplasty revision was performed. Serum cobalt (Co) and chromium (Cr) concentrations had been collected postoperatively of the index procedure at 6...
Source: Orthopedics - November 1, 2009 Category: Orthopaedics Authors: Mai MC, Milbrandt JC, Hulsen J, Allan DG Tags: Orthopedics Source Type: journals

Spontaneous disappearance of lumbar disk herniation within 3 months.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This article describes a case of vanishing lumbar disk herniation in a 33-year-old man. The patient experienced sudden severe lumbar pain while lifting a 240-kg weight while attempting a Donkey Calf Raise during muscle training. The pain persisted despite the use of a lumbar corset and nonsteroidal anti-inflammatory drugs. Twelve days after onset, sensory disturbance appeared in the right L5 dermatome, and a manual muscle test of the right anterior tibial muscle revealed level 3. The pain gradually spread over the right lower extremity and the indistinct lumbago changed to localized back pain at the L4/5 vertebral level. M...
Source: Orthopedics - November 1, 2009 Category: Orthopaedics Authors: Nozawa S, Nozawa A, Kojima H, Shimizu K Tags: Orthopedics Source Type: journals

Anatomic anterior cruciate ligament reconstruction in the skeletally immature: is it possible?Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
PMID: 19902882 [PubMed - in process] (Source: Orthopedics)
Source: Orthopedics - November 1, 2009 Category: Orthopaedics Authors: Rueff D, Royalty R, Yarnell RG, Johnson DL Tags: Orthopedics Source Type: journals

Malignant hyperthermia: a pharmacogenetic disorder.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
PMID: 19902883 [PubMed - in process] (Source: Orthopedics)
Source: Orthopedics - November 1, 2009 Category: Orthopaedics Authors: Stratman RC, Flynn JD, Hatton KW Tags: Orthopedics Source Type: journals

ACL reconstruction in adolescent and preadolescent patients.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
PMID: 19902884 [PubMed - in process] (Source: Orthopedics)
Source: Orthopedics - November 1, 2009 Category: Orthopaedics Authors: Ganley TJ Tags: Orthopedics Source Type: journals

Vacuum-assisted closure with external fixation of the hand.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
PMID: 19902885 [PubMed - in process] (Source: Orthopedics)
Source: Orthopedics - November 1, 2009 Category: Orthopaedics Authors: Gerszberg KS, Tan V Tags: Orthopedics Source Type: journals

Biologic response to orthopedic sutures: a histologic study in a rabbit model.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Biologic reactivity to suture materials can have an effect on patient outcomes. The goal of this study was to determine the histologic response to 8 commonly used orthopedic sutures--Ethibond (Ethicon, Somerville, New Jersey), Ticron (Tyco, Waltham, Massachusetts), HiFi (Linvatec, Largo, Florida), Ultrabraid (Smith & Nephew, Memphis, Tennessee), MaxBraid (Biomet, Warsaw, Indiana), Orthocord (Mitek, Raynham, Massachusetts), MagnumWire (Opus Medical, San Juan Capistrano, California), and FiberWire (Arthrex, Naples, Florida)--using a rabbit model. The suture granuloms were evaluated at 30, 60, and 120 days with measur...
Source: Orthopedics - November 1, 2009 Category: Orthopaedics Authors: Carr BJ, Ochoa L, Rankin D, Owens BD Tags: Orthopedics Source Type: journals

The effects of postoperative ketorolac on wound healing in a rat model.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Ketorolac is a nonopioid, anti-inflammatory drug commonly used for postoperative analgesia. Its effectiveness has been previously documented in various orthopedic procedures and more recently in spinal surgery. It remains uncertain if ketorolac has an effect on wound healing. The purpose of this study was to determine if the use of postoperative ketorolac induced deleterious effects on wound healing in a simulated spinal surgery incision using a rat model. A 4-cm dorsal midline incision was made and closed in 36 rats. Rats were divided into 3 groups: (1) 5 mg/kg ketorolac given every 6 hours for 24 hours; (2) 5 mg/kg k...
Source: Orthopedics - November 1, 2009 Category: Orthopaedics Authors: Eck JC, Gomez BA, Yaszemski MJ Tags: Orthopedics Source Type: journals

Membrane type-1 metalloproteinase mediates nitric oxide-induced activation of matrix metalloproteinase-13.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This article investigates the mechanism of activation of matrix metalloproteinase-13 induced by nitric oxide. SW1353 cells were stimulated with S-nitroso-N-acetyl-D,L-penicillamine, expressions and activities of metalloproteinase-13, and membrane type-1 metalloproteinase were assayed, and a proteolytic activation of recombinant human metalloproteinase-13 was measured in the presence of recombinant human membrane type-1 metalloproteinase. Nitric oxide increased expressions of both matrix metalloproteinases and stimulated the proteolytic processing of metalloproteinase-13 from the pro-enzyme to the final active form. Recombi...
Source: Orthopedics - November 1, 2009 Category: Orthopaedics Authors: Guo A, Yang L, Gu JC Tags: Orthopedics Source Type: journals

Noise characteristics of surgical space suits.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Several studies indicate that the noise generated by performing orthopedic surgery has the potential to cause hearing loss. Noise-induced hearing loss was found in 50% of the orthopedic surgeons studied using audiometric testing, with a greater incidence associated with years of practice. Noise produced by several orthopedic surgical instruments such as saws, drills, and hammers during surgery exceeds 100 dB, especially during knee replacement procedures. In one study, surgical space suits (personal protection systems) were suggested to help protect against noise-induced hearing loss, although space suit manufacturers ...
Source: Orthopedics - November 1, 2009 Category: Orthopaedics Authors: Pearlman RT, Sandidge O Tags: Orthopedics Source Type: journals

Multivariate analysis of prognostic factors in synovial sarcoma.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Many studies have described the diversity of synovial sarcoma in terms of its biological characteristics and clinical features. Moreover, much effort has been expended on the identification of prognostic factors because of unpredictable behaviors of synovial sarcomas. However, with the exception of tumor size, published results have been inconsistent. We attempted to identify independent risk factors using survival analysis. Forty-one consecutive patients with synovial sarcoma were prospectively followed from January 1997 to March 2008. Overall and progression-free survival for age, sex, tumor size, tumor location, met...
Source: Orthopedics - November 1, 2009 Category: Orthopaedics Authors: Koh KH, Cho EY, Kim DW, Seo SW Tags: Orthopedics Source Type: journals

Osteoid osteoma: a diagnosis for radicular pain of extremities.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Osteoid osteoma is a benign tumor commonly found in young patients. The most interesting feature of the tumor is its peculiar obvious pain. The intensity of pain produced by osteoid osteoma is unproportionate to its nature and size. Much has been written about the mechanism of this symptom of the tumor and the specific characteristics of the pain that can be misleading when appearing as radicular pain especially when some subtle neurologic signs and symptoms accompany the pain. In this article, 12 patients who were referred to our clinic with radicular pain and neurological signs and symptoms months after initiation of...
Source: Orthopedics - November 1, 2009 Category: Orthopaedics Authors: Ebrahimzadeh MH, Ahmadzadeh-Chabock H, Ebrahimzadeh AR Tags: Orthopedics Source Type: journals

Regeneration of the fibula using a periosteum-preserving technique in children.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This article describes our experience with donor site bone grafts using a periosteum-preserving technique with respect to minimizing donor site complications and performing effective reconstruction of bone defects in children. Seventeen patients who were followed after fibula resection and bone grafting in the donor site using a periosteum-preserving technique were evaluated radiologically and clinically. The patients were divided into 2 groups: 1 group was filled with cancellous allograft (n=9), and the other group was filled with calcium sulfate (n=8) in the donor site. Mean patient age was 8.4 years (range, 2-13 years),...
Source: Orthopedics - November 1, 2009 Category: Orthopaedics Authors: Xin ZF, Kim KH, Jung ST Tags: Orthopedics Source Type: journals

Arthrodiatasis for the treatment of Perthes' disease.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
It is hypothesized that the interruption of the blood supply is an important factor causing femoral head osteonecrosis in the early stages of Legg-Calvé-Perthes disease. Currently, treatment by containment is recommended to direct and guide remodeling of the softened femoral head as it evolves from fragmentation through ossification. The goal of this study was to show the results of arthrodiatasis to induce height recovery of the femoral head and to achieve true ambulatory nonweight-bearing containment. Forty-two patients younger than 8 years with a diagnosis of Perthes' disease were studied. Twenty-three patients...
Source: Orthopedics - November 1, 2009 Category: Orthopaedics Authors: Aly TA, Amin OA Tags: Orthopedics Source Type: journals

Biomechanical evaluation of 3-part proximal humerus fractures: a cadaveric study.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This study compares stiffness in axial loading for 3 methods of fixation (locking compression plate, standard (nonlocking) proximal humerus plate, and blade plate) in a 3-part proximal humerus fracture model. Twelve paired proximal humeri were obtained from embalmed human cadavers and separated into 3 groups. Osteotomies of the surgical neck and greater tuberosity were created to simulate a 3-part proximal humerus fracture. After fixation, constructs were axially loaded in 20 degrees of abduction for 200 cycles in an Instron materials testing machine (Norwood, Massachusetts). The blade plate (mean, 146.87+/-28.9 N/mm) demo...
Source: Orthopedics - November 1, 2009 Category: Orthopaedics Authors: Gillespie RJ, Ramachandran V, Lea ES, Vallier HA Tags: Orthopedics Source Type: journals

Reproducibility and accuracy of templating uncemented THA with digital radiographic and digital TraumaCad templating software.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
The reproducibility and accuracy of a digital software templating program on digital images was examined for primary uncemented total hip arthroplasty (THA). Forty-five patients waiting for an uncemented THA had templating performed of their digital picture archiving and communication systems (PACS) pelvic images with the TraumaCad software program (Orthocrat Ltd, Petach-Tikva, Israel). Acetabular cup size, femoral stem size, and femoral offset were noted by 2 observers, and again by 1 of the observers a week later. Through correlation coefficients and significance testing, the degree of intraobserver and interobserver...
Source: Orthopedics - November 1, 2009 Category: Orthopaedics Authors: Kumar PG, Kirmani SJ, Humberg H, Kavarthapu V, Li P Tags: Orthopedics Source Type: journals

The effects of anterior cruciate ligament lesion on the articular cartilage of growing goats.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Treatment of anterior cruciate ligament (ACL) injury in skeletally immature patients is controversial. The growth plate could be damaged if treated with the reconstruction techniques used to treat instability in adults. For this reason, many authors postpone surgical treatment until skeletal maturity, but the acceptable length of time that treatment can be postponed without causing irreversible damage to the articular cartilage in children with ACL injury is unknown. Until now, no studies have described the pathological findings and the evolution of the lesions of the articular cartilage during the growing period. For ...
Source: Orthopedics - November 1, 2009 Category: Orthopaedics Authors: Falciglia F, Mastantuoni G, Guzzanti V Tags: Orthopedics Source Type: journals

Range of flexion after primary TKA: the effect of soft tissue release and implant design.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Range of motion following total knee arthroplasty (TKA) is a crucial measure of clinical outcome. The purpose of this randomized, controlled study was to determine which factors are predictive of postoperative range of flexion. Fifty-six patients received either a standard or a high-flexion design NexGen Legacy Posterior-Stabilized TKA (Zimmer, Warsaw, Indiana). The relationship between preoperative flexion, intraoperative flexion, and range of flexion 1 year postoperatively was determined. The influence of soft tissue release and the type of femoral component was also investigated. A significant correlation existed be...
Source: Orthopedics - November 1, 2009 Category: Orthopaedics Authors: Ahmed I, Gray AC, van der Linden M, Nutton R Tags: Orthopedics Source Type: journals

Surgical planning and procedures for difficult total knee arthroplasty.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Most total knee arthroplasties (TKAs) are performed for minimal knee joint deformities with standard techniques and instrumentation. However, patients with extra-articular deformities, severe varus and valgus deformities, and posttraumatic arthrosis pose unique challenges to surgeons. Each deformity requires different modifications of surgical technique or prosthesis used to successfully perform TKA and optimize postoperative results. The surrounding tissues connect the femur and the tibia at the anterior, posterior, medial, and lateral walls of the knee joint. The medial soft tissues should be released for varus defor...
Source: Orthopedics - November 1, 2009 Category: Orthopaedics Authors: Kao FC, Hsu KY, Tu YK, Chou MC Tags: Orthopedics Source Type: journals

Accelerating autograft maturation in instrumented posterolateral lumbar spinal fusions without donor site morbidity.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
In this study, iliac crest bone autograft supplemented with either BMP or spinal fusion stimulator resulted in a solid contiguous fusion without significant iliac crest bone autograft harvest-related morbidity. Bone morphogenic protein-supplemented iliac crest bone autograft fused at a faster rate, producing the more mature-appearing, trabeculated, robust fusion. PMID: 19902899 [PubMed - in process] (Source: Orthopedics)
Source: Orthopedics - November 1, 2009 Category: Orthopaedics Authors: Rogozinski A, Rogozinski C, Cloud G Tags: Orthopedics Source Type: journals

Is the size appropriate for the procedure?Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
PMID: 19902900 [PubMed - in process] (Source: Orthopedics)
Source: Orthopedics - November 1, 2009 Category: Orthopaedics Authors: Dayton MR Tags: Orthopedics Source Type: journals

Your diagnosis? Bipartite navicular.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
PMID: 19902901 [PubMed - in process] (Source: Orthopedics)
Source: Orthopedics - November 1, 2009 Category: Orthopaedics Authors: Dionisio P, Lomasney LM, Demos TC, Harris E Tags: Orthopedics Source Type: journals

Pirates, Buccaneers, Corsairs, and Histologists!Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Authors: PMID: 19904869 [PubMed - as supplied by publisher] (Source: Orthopedics)
Source: Orthopedics - November 1, 2009 Category: Orthopaedics Tags: Orthopedics Source Type: journals

Explosions and Blast Injuries.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Authors: PMID: 19904870 [PubMed - as supplied by publisher] (Source: Orthopedics)
Source: Orthopedics - November 1, 2009 Category: Orthopaedics Tags: Orthopedics Source Type: journals

Contemporary Management of Symptomatic Bipartite Patella.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
PMID: 19904871 [PubMed - as supplied by publisher] (Source: Orthopedics)
Source: Orthopedics - November 1, 2009 Category: Orthopaedics Authors: Gaheer RS, Kapoor S, Rysavy M Tags: Orthopedics Source Type: journals

Contemporary Management of Symptomatic Bipartite Patella.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Authors: PMID: 19904872 [PubMed - as supplied by publisher] (Source: Orthopedics)
Source: Orthopedics - November 1, 2009 Category: Orthopaedics Tags: Orthopedics Source Type: journals

Ultrasound-based navigation and 3D CT compared in acetabular cup position.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Intraoperative landmarks are used in image-free navigation systems. The ultrasound-based navigation systems try to overcome the problems of positional deviation associated with soft tissue. Our study analyzed the accuracy of ultrasound-based navigation of cup positioning compared with postoperative 3-dimensional (3D) computed tomography scans of cup positioning. Twenty-five ultrasound-navigated total hip arthroplasties (THAs) were analyzed. The difference between the intraoperative cup orientation (navigation) and the postoperative cup position (CT) was evaluated. The average difference between intraoperative navigatio...
Source: Orthopedics - October 1, 2009 Category: Orthopaedics Authors: Hasart O, Poepplau BM, Asbach P, Perka C, Wassilew GI Tags: Orthopedics Source Type: journals

Acetabular orientation with different pelvic registration landmarks.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This study determined the relationship of various pelvic landmarks to the pelvic plane in the lateral position. Five whole-body cadavers were used in this study. All navigation data were collected using the OrthoPilot navigation system (B. Braun Aesculap, Tuttlingen, Germany) to register all landmarks. The pelvic plane was registered with the body in the supine position for comparison. The ipsilateral posterosuperior iliac spine (PSIS) and contralateral PSIS were registered for comparison of the line made by the 2 anterosuperior iliac spines (ASIS) in the supine position. Registration points along the acetabular rim at the...
Source: Orthopedics - October 1, 2009 Category: Orthopaedics Authors: Mihalko WM, Kammerzell S, Saleh KJ Tags: Orthopedics Source Type: journals

Cup positioning in primary total hip arthroplasty using an imageless navigation device: is there a learning curve?Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
In this study, the success of cup positioning in total hip arthroplasty (THA) using an imageless navigation system was analyzed (1) during the learning period and (2) after the learning period for using the navigation system. Sixty THAs were performed in which threaded cups were placed with use of a computer-assisted navigation device (B. Braun Aesculap, Tuttlingen, Germany). Half of the procedures (30), group A, were done by the same surgeons under the learning curve for using the navigation system; the other half (30), group B, were done by surgeons who were no longer considered under the learning curve. Intraoperative a...
Source: Orthopedics - October 1, 2009 Category: Orthopaedics Authors: Thorey F, Klages P, Lerch M, Flörkemeier T, Windhagen H, von Lewinski G Tags: Orthopedics Source Type: journals

Femoral neck cut level affects positioning of modular short-stem implant.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This study investigated the final implant positioning of a short metaphyseal femoral neck type of implant to determine whether leg length, caput collum diaphysis (CCD) angle, and offset could be re-created with different levels of femoral neck resection. Ten cadaveric hips in 6 whole-body specimens were used, with 3 fiducial markers to allow registration of computer navigation points to computed tomography scan data. Three femoral neck resection levels were investigated: 0 mm, +5 mm (the recommended level of resection), and +10 mm from the base of the femoral neck. Results showed that the CCD angle was significantly higher...
Source: Orthopedics - October 1, 2009 Category: Orthopaedics Authors: Mihalko WM, Saleh KJ, Heller MO, Mollard B, König C, Kammerzell S Tags: Orthopedics Source Type: journals

Effect of PCL on flexion-extension gaps and femoral component decision in TKA.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This study was done to evaluate the change of medial-lateral gap in flexion and extension after posterior cruciate ligament (PCL) release in severely deformed knees and to determine how PCL release affects bone resection, rotation, and size of the femoral component and polyethylene thickness in converting to a PCL-sacrificed design. Thirty primary osteoarthritis patients with severe varus deformity or flexion contracture were enrolled. After releasing the PCL, the medial gap in extension increased by 1.2 mm, the lateral gap in extension increased by 0.3 mm, the medial gap in flexion increased by 4.5 mm, and the lateral gap...
Source: Orthopedics - October 1, 2009 Category: Orthopaedics Authors: Park SJ, Seon JK, Park JK, Song EK Tags: Orthopedics Source Type: journals

Flexion-extension gaps balanced using navigation assistance in TKA.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This study evaluated the accuracy of navigation for balancing soft tissue and flexion-extension gaps in primary total knee arthroplasty (TKA). We evaluated 112 knees treated with TKA using the gap technique and navigation system. Flexion-extension gaps were measured before femoral cutting (precutting gaps) and before prosthesis insertion (final gaps). Balanced precutting flexion-extension gaps were shown in 45 cases (40.2%), and balanced final flexion-extension gap was achieved in 105 cases (93.8%). Precutting tight extension gaps resulted from preoperative extension lag. We found TKA using the gap technique with navigatio...
Source: Orthopedics - October 1, 2009 Category: Orthopaedics Authors: Song EK, Seon JK, Park SJ Tags: Orthopedics Source Type: journals

Navigation system measures AP and rotational knee laxity in ACL replacement.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
We used a non-image-based navigation system to measure anterior and rotational laxity during anterior cruciate ligament replacement. The preoperative and postoperative navigated measurements of anterior laxity were compared with the preoperative and postoperative stress radiographs. There was a significant difference between these 2 measurements, but they were significantly correlated. Navigated anterior laxity measurement can therefore be considered reliable. The intraoperative information about the correction of the anterior laxity may have relevance in controlling the quality of the procedure and improving reproduci...
Source: Orthopedics - October 1, 2009 Category: Orthopaedics Authors: Jenny JY Tags: Orthopedics Source Type: journals

Joint line changes after navigation-assisted mobile-bearing TKA.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
The purpose of this study was to analyze the clinical results of patients who underwent navigation-assisted cruciate ligament retention-type mobile-bearing total knee arthroplasty (TKA) according to joint line changes. From September 2004 to January 2006, cruciate ligament retention-type mobile-bearing TKAs were performed using a navigation system (OrthoPilot; B. Braun Aesculap, Tuttlingen, Germany) on 50 knees in 45 patients (2 men, 43 women). The mean follow-up period was 46 (range, 39-55 months), and patient mean age was 65 years. There was 1 case of rheumatic arthritis; all others were of degenerative arthritis. Pr...
Source: Orthopedics - October 1, 2009 Category: Orthopaedics Authors: Yang JH, Seo JG, Moon YW, Kim MH Tags: Orthopedics Source Type: journals

The role of navigation in high tibial osteotomy: a study of 50 patients.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
From October 1, 2007, to October 10, 2008, we performed 50 navigated high tibial osteotomies (medial opening wedge). The mean age of the patients was 46.58 years (range, 16-70). Twenty-three osteotomies were performed in women and 27 in men. Two patients received osteotomies on both sites. Average malalignment was 6.4 degrees varus (range, 3 degrees -10.8 degrees ). Sixteen osteotomies were performed on the right side and 34 on the left side. Detailed preoperative planning was performed using the digital MediCad (Hectec GmbH, Niederviehbach, Germany) program based on the malalignment test. Navigation data were compared...
Source: Orthopedics - October 1, 2009 Category: Orthopaedics Authors: Heijens E, Kornherr P, Meister C Tags: Orthopedics Source Type: journals

Effect of posterior condylar offset on cruciate-retaining mobile TKA.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
The objective of this article was to evaluate the effect of the change of posterior condylar offset to range of motion (ROM) and clinical results after computer-assisted cruciate-retaining mobile-bearing total knee arthroplasty (TKA). A total of 111 knees underwent cruciate-retaining mobile-bearing TKAs under computer-assisted navigation from January 2005 to September 2007. All cases were primary osteoarthritis and had <15 degrees of valgus or varus deformity. We divided patients into 4 groups according to change of posterior condylar offset, which was measured by postoperative minus preoperative posterior condylar offs...
Source: Orthopedics - October 1, 2009 Category: Orthopaedics Authors: Seo SS, Ha DJ, Kim CW, Choi JS Tags: Orthopedics Source Type: journals

Experience curve compared with manufacturing processes for TKA.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
In the experience curve concept set forth by the National Aeronautics and Space Administration (NASA), production time falls by a set percentage every time cumulative production doubles. NASA has established benchmark figures for different manufacturing processes, and we have used these figures in analyzing our first 240 navigated total knee arthroplasties for varus knees. Our experience curve was 93% (P < .001), which is similar to the experience curve (90%) for processes consisting of 25% hand assembly and 75% machining. We suggest that the experience curve may provide a guide for comparing different surgical team...
Source: Orthopedics - October 1, 2009 Category: Orthopaedics Authors: Sampath SA, Davies H, Voon S Tags: Orthopedics Source Type: journals

Rotational alignment of femoral component and flexion gap balance in patients with distal femoral torsional deformity using navigation-assisted TKA.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
We evaluated the rotational alignment of the femoral component after total knee arthroplasty in 46 patients with distal femoral torsional deformity using a navigation-assisted gap technique. Preoperative distal femoral torsional angle and postoperative rotational deviation of the femoral component were measured using computed tomography. Flexion gap data were obtained from intraoperative navigation measurements. The mean rotational deviation of the femoral component was 4.1 degrees (range, 2 degrees -6 degrees ) internal rotation in reference to transepicondylar axis (TEA). The femoral component was not aligned within ...
Source: Orthopedics - October 1, 2009 Category: Orthopaedics Authors: Lim HC, Bae JH, Neogi DS, Wang JH, Seok CW, Kim MK Tags: Orthopedics Source Type: journals

Radiologic case study.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
PMID: 19835333 [PubMed - in process] (Source: Orthopedics)
Source: Orthopedics - September 30, 2009 Category: Orthopaedics Authors: Watts M, Sundaram M, Demos TC Tags: Orthopedics Source Type: journals

Relics of time past.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Authors: PMID: 19835334 [PubMed - in process] (Source: Orthopedics)
Source: Orthopedics - September 30, 2009 Category: Orthopaedics Tags: Orthopedics Source Type: journals

High-dose steroids for neurotrauma - another thing to watch.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Authors: PMID: 19835335 [PubMed - in process] (Source: Orthopedics)
Source: Orthopedics - September 30, 2009 Category: Orthopaedics Tags: Orthopedics Source Type: journals

Peripheral neuropathy of the upper extremity.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Authors: PMID: 19835336 [PubMed - in process] (Source: Orthopedics)
Source: Orthopedics - September 30, 2009 Category: Orthopaedics Tags: Orthopedics Source Type: journals

Peripheral neuropathy of the upper extremity: medical comorbidity that confounds common orthopedic pathology.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
In the orthopedic patient, the diagnosis of a compression neuropathy may be straightforward. However, various medical comorbidities can obscure this diagnosis. It is paramount for the practicing orthopedic surgeon to have an appreciation for the medical pathology of common axonal neuropathies to properly diagnose, treat, and refer a patient with altered sensation in the upper extremity. The prevalence of diabetes in the United States is 10%, and roughly 20% of diabetic patients have peripheral neuropathy. In addition to diabetes, 32% of heavy alcohol users present with polyneuropathy. With advancements in the treatment...
Source: Orthopedics - September 30, 2009 Category: Orthopaedics Authors: Bales JG, Meals R Tags: Orthopedics Source Type: journals

Sacral fractures: current strategies in diagnosis and management.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This article reviews the approach to sacral fracture diagnosis and management. PMID: 19824583 [PubMed - in process] (Source: Orthopedics)
Source: Orthopedics - September 30, 2009 Category: Orthopaedics Authors: Hak DJ, Baran S, Stahel P Tags: Orthopedics Source Type: journals

Changing winds: practice implications of acetaminophen regulations.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
This article reviews the committee process, previous FDA actions on acetaminophen, and implications of the recommendations made for the orthopedic practitioner. PMID: 19824584 [PubMed - in process] (Source: Orthopedics)
Source: Orthopedics - September 30, 2009 Category: Orthopaedics Authors: Rogalski AL, Smith KM Tags: Orthopedics Source Type: journals

Visiting orthopaedic scholars program.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
Dr Steven Morgan discusses his experience as the first visiting scholar of the Visiting Orthopaedic Scholars Program rotated at Landstuhl Regional Medical Center in Landstuhl, Germany. PMID: 19824585 [PubMed - in process] (Source: Orthopedics)
Source: Orthopedics - September 30, 2009 Category: Orthopaedics Authors: Morgan SJ Tags: Orthopedics Source Type: journals

"V"ictory transosseous equivalent suture configuration for arthroscopic rotator cuff tear repairs of iatrogenically completed PASTA lesions and full-thickness "U"-shaped tears.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
The cost of numerous anchors in rotator cuff surgery is high from both an economic standpoint as well as a physiologic one. More anchors means increased cost and increased surgical time; additionally, the greater number of anchors placed, the greater the expense on the native bone that they inevitably replace. It is therefore in the surgeon's and patient's best interest to use the appropriate number of anchors, no more and no less, with the appropriate number being that which allows for strong, stable fixation with minimal gap formation and maximal healing potential and recovery. The transosseous equivalent repair tech...
Source: Orthopedics - September 30, 2009 Category: Orthopaedics Authors: Lewicky YM Tags: Orthopedics Source Type: journals

Lateral decubitus positioning for intramedullary nailing of the femur without the use of a fracture table.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
In closed intramedullary nailing of the femur in the lateral decubitus position without the use of a fracture table, access to the proximal femur is enhanced as compared to supine nailing, especially in large patients. The hip is typically flexed during the nailing, which allows the nail to be placed posterior to the gluteus medius, thus minimizing abductor damage. The deforming forces of flexion and abduction in proximal fracture patterns can be readily overcome by this technique. Proper rotation of the leg can be assessed clinically or with the use of a femoral neck anteversion guide wire. Fluoroscopic visualization ...
Source: Orthopedics - September 30, 2009 Category: Orthopaedics Authors: Carr JB, Williams D, Richards M Tags: Orthopedics Source Type: journals

Health care disaster? I don't buy it.Email this article to a colleague. Save this article to My Clippings. Discuss or comment on this article.
PMID: 19824588 [PubMed - in process] (Source: Orthopedics)
Source: Orthopedics - September 30, 2009 Category: Orthopaedics Authors: Brady PC, D'Ambrosia RD Tags: Orthopedics Source Type: journals