Knee Surgery, Sports Traumatology, Arthroscopy
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The resident’s ridge as an arthroscopic landmark for anatomical femoral tunnel drilling in ACL reconstruction
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Abstract The purposes of this study were to establish the technique to arthroscopically identify the resident’s ridge without bony
notchplasty even in patients with chronic ACL insufficiency and to elucidate if the ridge could be used as a landmark for
anatomical femoral tunnel for ACL graft. There were 50 consecutive patients undergoing arthroscopic ACL reconstruction. With
the thigh kept horizontal using a leg holder, a meticulous effort was made to find out a linear ridge running proximo-distal
in a posterior one-third of the lateral notch wall, after removal of superficial soft tissue with radiofrequen...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - November 14, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Changes in ACL length at different knee flexion angles: an in vivo biomechanical studyEmail this article to a colleague.
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Abstract Recently, there has been a tremendous impetus on anatomical reconstruction of the anterior cruciate ligament (ACL), and the
double-bundle reconstruction concept has been advocated by many authors. It is, therefore, important to understand how the
lengths of the two bundles of the ACL vary during different knee flexion angles as this could influence the angle of graft
fixation during surgery. The aim of this study is to determine the change in length of the ACL bundles during different knee
flexion angles. Ten subjects with normal knees were evaluated. A high-resolution computer tomography scan was p...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - November 14, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Peroneal nerve damage by bicortical tibial screw in ACL reconstructionEmail this article to a colleague.
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Abstract Arthroscopically assisted anterior cruciate ligament reconstruction is regarded as a minimally invasive surgery with low morbidity
but complications still occur. Reports of neurovascular injuries related to graft harvesting, tunnel placement, or graft fixation
are limited. A rare case of peroneal nerve injury related to hardware used for graft fixation in the tibial in a 28-year-old
female patient who underwent an anterior cruciate ligament reconstruction surgery using a patellar tendon graft (bone-tendon-bone
graft) is presented. Post-operatively, the patient presented with clinical signs of perone...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - November 14, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
ACL prosthesis: any promise for the future?Email this article to a colleague.
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This article provides a review
of the history of the use of prosthetics with respect to ACL reconstruction grafts including Carbon Fibre, Gore-Tex and Dacron
prosthetics, as well as the Leeds-Keio Artificial Ligament and the Kennedy Ligament Augmentation Device (LAD). Emphasis is
placed on the ligament advanced reinforcement system (LARS) as preliminary investigations of its use have been encouraging.
Significant progress has been made recently with respect to the understanding of ACL anatomy, composition, biomechanics, and
healing processes, leading to innovative techniques using approaches based in tissue engineerin...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - November 14, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
The transtibial versus the anteromedial portal technique in the arthroscopic bone-patellar tendon-bone anterior cruciate ligament reconstructionEmail this article to a colleague.
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Abstract The transtibial (TT) drilling of the femoral tunnel in the bone-patellar tendon-bone (BPTB) anterior cruciate ligament (ACL)
reconstruction was found to place the tunnel non-anatomically. The use of the anteromedial portal (AMP) for the femoral drilling
would provide the surgeon with more freedom to anatomically place the tunnel in the real femoral ACL footprint. The purpose
of this study was to compare the clinical outcomes of BPTB ACL reconstruction using the AMP or the TT technique for the femoral
tunnel drilling. A Medline search was not able to identify any study directly comparing the clinical...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - November 10, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Knee flexor strength after ACL reconstruction: comparison between hamstring autograft, tibialis anterior allograft, and non-injured controlsEmail this article to a colleague.
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This study compared the mean peak isometric knee flexor torque of the following three groups:
subjects 2 years following ACL reconstruction using semitendinosus–gracilis autografts (Group 1), subjects 2 years following
ACL reconstruction using tibialis anterior allografts (Group 2), and a non-injured, activity-level-matched control group (Group
3). We hypothesized that Group 1 would have greater mean involved lower extremity peak isometric knee flexor torque deficits
than the other groups. Handheld dynamometry with subjects in prone and the test knee at 90° flexion was used to determine
bilateral peak iso...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - November 7, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Septic arthritis of the knee joint secondary to adjacent chronic osteomyelitis of the femur in an adultEmail this article to a colleague.
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Abstract The present report describes a case of septic knee arthritis secondary to reactivated chronic osteomyelitis. The osteolytic
lesion observed on the initial radiographs resulted in further imaging studies including CT and MRI, which confirmed the diagnosis.
Based on the patient’s history, physical findings and imaging studies, we performed open debridement rather than arthroscopic
surgery in order to treat the infected intraarticular knee joint and ream the femur intramedullary canal. Additionally, an
antibiotic-impregnated cement rod was inserted into the medullary cavity to fill the dead space and...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - November 5, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Treatment of an osteoporotic Hoffa fractureEmail this article to a colleague.
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Abstract Two patients with Hoffa fracture of the knee, both suffering from poliomyelitis are reported. Both had unicondylar coronal
plane fracture of the medial femoral condyle. The patients were treated with open reduction and screw fixation. Due to poor
screw purchase, reoperation was necessary in one patient. The results were satisfactory in both patients.
Content Type Journal ArticleCategory KneeDOI 10.1007/s00167-009-0960-4Authors
Joseph Jeremy Hsi Tse Chang, Alice Ho Miu Ling Nethersole Hospital Department of Orthopaedics and Traumatology Tai Po Hong Kong ChinaJason Chi Ho Fan, Alice Ho Miu Ling Net...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - November 5, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Microcirculatory effects of topical glyceryl trinitrate on the Achilles tendon microcirculation in patients with previous Achilles tendon ruptureEmail this article to a colleague.
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Abstract Topical glyceryl trinitrate treatment has demonstrated short- to mid-term efficacy in chronic noninsertional Achilles tendinopathy.
However, the underlying mechanisms are far from being understood. We hypothetized that Achilles tendon capillary blood flow
changes immediately after topical glyceryl trinitrate treatment. Fifteen patients (55 ± 15 years, VAS 5.8 ± 2.3) with current
mid-portion Achilles tendon pain 36 months after open surgical Achilles tendon repair for tendon rupture were included. On
the Achilles mid-portion, 1.2 mg topical glyceryl trinitrate was...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 31, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Is there any superiority in the clinical outcome of mobile-bearing knee prosthesis designs compared to fixed-bearing total knee prosthesis designs in the treatment of osteoarthritis of the knee joint?Email this article to a colleague.
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Abstract To substantiate the validity and relevance of the mobile-bearing knee prosthesis design compared to the fixed-bearing design,
concerning the clinical outcome, this review was conducted. Articles published in 6 major orthopaedic journals were screened.
Only randomized controlled trials, which investigate the clinical outcome, were included. The clinical outcome parameters
of each study were analysed. Despite the numerous quantities of publications in orthopaedic literature, we could conclude,
that only a few of them are randomized controlled trials. Although better kinematics of mobile-bearing knee p...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 29, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Microfracture treatment of single or multiple articular cartilage defects of the knee: a 5-year median follow-up of 110 patientsEmail this article to a colleague.
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Abstract We compared the results of microfracture in single versus multiple symptomatic articular cartilage defects in the knee in
110 patients with a median age of 38 years (range 15–60). Cases of reoperation of the cartilage defect were classified as
failures. Clinical outcome in non-failures was evaluated by the Lysholm score and grading of knee pain and function of the
knee by the use of patient-administered visual analog scales (VAS; 0–100). Data were prospectively collected before the operation
and at the 2- to 9-year follow-up. The single lesion or the largest of multiple lesions were located...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 28, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
A new operative treatment for chronic biceps femoris tendon avulsionEmail this article to a colleague.
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In this report, an original technique for augmentation of chronic biceps femoris tendon avulsion is described. The procedure
is developed using a reverse fascia flap of biceps femoris to be a single-tailed graft. Then, a suture anchor is inserted
on the fibular head to approximate and fix the retracted the biceps femoris. Finally, a tunnel is drilled at the proximal
fibula to let the graft pass through, and the end of the graft loop is sutured to itself. This technique confers effective,
firm fixation of chronic biceps femoris tendon avulsion.
Content Type Journal ArticleCategory KneeDOI 10.1007/s00167-009-0975-xAut...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 28, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
ACL graft migration under cyclic loadingEmail this article to a colleague.
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Abstract Elongation and migration of ACL grafts will lead to a deterioration of the initial stability of ACL reconstructions. The graft
migration has been sparsely investigated independently from the elongation of the graft–fixation complex. The hypothesis of
this investigation was that cyclic tensile loads cause a measurable migration of the grafts. Three graft/fixation combinations
were investigated in human femora (n = 7): human bone-patellar tendon grafts fixed with a biointerference screw (BPTG-IS) and free tendon grafts (porcine) fixed
with either a Bio-TransFix pin (FTG-TF) or an Endobutto...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 27, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Ligament releases do not lead to increased postoperative varus-valgus laxity in flexion and extension: a prospective clinical study in 49 TKR patientsEmail this article to a colleague.
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Abstract This prospective study investigated whether ligament releases necessary during total knee replacement (TKR) led to a higher
varus-valgus laxity during intraoperative examination after implantation of the prosthesis and after 6 months. The laxity
values of TKR patients were also compared to healthy controls. Varus-valgus laxity was assessed intra- and postoperatively
in extension and 70° flexion in 49 patients undergoing TKR, implanted using a balanced gap technique. Knees were catalogued
according to ligament releases performed during surgery. Postoperative varus-valgus laxity and laxity after...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 27, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Effect of dihydrotestosterone on cultured human tenocytes from intact supraspinatus tendonEmail this article to a colleague.
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In conclusion, in vitro, progressive increasing concentration of DHT at doses greater
than 10−8 M had direct effects on male human tenocytes, increasing cell number after 48 and 72 h of treatment, and leading to a dedifferentiated
phenotype after 48 h of treatment. This effect can be important during tendon-healing and repair, when active proliferation
is required. Our results represent preliminary evidence for a possible correlation between testosterone abuse and shoulder
tendinopathy.
Content Type Journal ArticleCategory Experimental StudyDOI 10.1007/s00167-009-0953-3Authors
Vincenzo Denaro, Cam...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 27, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Arthroscopic technique for fragment fixation using absorbable pins for osteochondritis dissecans of the humeral capitellum: a report of 4 casesEmail this article to a colleague.
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Abstract This is the first report to describe a method of arthroscopic osteochondral fixation using absorbable pins to treat osteochondritis
dissecans (OCD) of the capitellum. Four adolescent baseball players with OCD of the capitellum were treated, and good short-term
results were obtained. During this arthroscopic procedure, the elbow was maintained in the maximum flexed position, and posterolateral
portals were used to visualize the lesion, perform drilling, and insert the pins. This procedure is less invasive and easier
to perform than other fixation procedures that require harvesting or production of au...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 27, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Sartorial branch of the saphenous nerve in relation to a medial knee ligament repair or reconstructionEmail this article to a colleague.
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Abstract Surgical approaches to repair or reconstruct the medial knee structures note caution to avoid the sartorial branch of saphenous
nerve. However, the approximate area of potential iatrogenic nerve injury has not been previously described in relation to
landmarks for a medial knee reconstruction. The purpose of this study was to define the course of the sartorial branch of
the saphenous nerve in relation to the superficial medial collateral ligament. A total of ten non-paired, fresh-frozen cadaveric
knees, with no evidence of prior injury or disease were utilized. Dissection to identify the medial knee...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 27, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Treatment of osteochondral lesions of the talus: a systematic reviewEmail this article to a colleague.
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Abstract The aim of this study was to summarize all eligible studies to compare the effectiveness of treatment strategies for osteochondral
defects (OCD) of the talus. Electronic databases from January 1966 to December 2006 were systematically screened. The proportion
of the patient population treated successfully was noted, and percentages were calculated. For each treatment strategy, study
size weighted success rates were calculated. Fifty-two studies described the results of 65 treatment groups of treatment strategies
for OCD of the talus. One randomized clinical trial was identified. Seven studies descri...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 27, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Application of tissue-engineered cartilage with BMP-7 gene to repair knee joint cartilage injury in rabbitsEmail this article to a colleague.
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This study aims to evaluate the effectiveness of
a tissue-engineered cartilage that was transfected with morphogenetic protein 7 (BMP 7) in repairing the cartilaginous defects
of rabbit knee joints. Chondrocytes were transfected with BMP-7 gene (5 × 106 cells/ml), inoculated into the collagen-fibrin gel scaffolds, and cultured for 14 days. Then, the scaffolds were implanted
onto the created defects (5.0 mm in diameter) in rabbits’ knee joints. After 12 weeks, the rabbits were sacrificed and histological
sections were evaluated using modified O’Driscoll cartilage scores; In situ hybridizati...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 23, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Long-term patient satisfaction and functional outcome 8–11 years after subacromial decompressionEmail this article to a colleague.
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Abstract The aim of this investigation was to evaluate the long-term outcome of arthroscopic subacromial decompression (ASD) in patients
with primary impingement syndrome stage II and early stage III. Ninety-five patients (105 shoulders, 48 female), mean age 54 years (range 26–69), who had undergone surgery between 1996
and 1999, were included. Pain intensity during activity and at rest, patient satisfaction, active range of motion (ROM), muscular
strength and shoulder function using the Constant score were evaluated. Fifty-three (50%) shoulders were pain-free (Visual
Analogue Scale ≤ 10&n...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 23, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
A 2-year follow-up of rehabilitation after ACL reconstruction using patellar tendon or hamstring tendon grafts: a prospective randomised outcome studyEmail this article to a colleague.
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Abstract Sixty-eight patients were clinically evaluated preoperatively, 3, 5, 7, 9 months, 1 and 2 years after ACL reconstruction,
34 with patellar tendon graft, 34 with hamstring graft. Outcome regarding graft choice and anterior knee laxity (P = 0.04) was in favour of patellar tendon graft. Hamstring graft led to a larger laxity, 2.4 mm compared with patellar tendon
graft, 1.3 mm at 1 year and 2.5 mm and 1.5 mm, respectively, at 2 years (P = 0.05). There was a significant difference in rotational knee stability in favour of the patellar tendon graft...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 23, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Postural orientation in subjects with anterior cruciate ligament injury: development and first evaluation of a new observational test batteryEmail this article to a colleague.
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Abstract Anterior cruciate ligament (ACL) injury is associated with mechanical instability and defective neuromuscular function, and
can lead to further injury, increased joint loading and osteoarthritis. Patients with ACL injury demonstrate altered postural
orientation, manifested as observable “substitution patterns” (SPs) but no one has applied a clinically useful method to systematically
study postural orientation in these patients. Here, we investigated the presence of such patterns in 24 adults with ACL injury
and in 49 controls, in parallel with the development and a first evaluation of a new test...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 23, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Clinical and radiological outcomes of fixed- versus mobile-bearing total knee replacement: a meta-analysisEmail this article to a colleague.
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Abstract Controversy exists regarding the clinical and radiological differences in outcomes between fixed- and mobile-bearing total
knee replacements (TKR). The aim of this study was to compare these two TKR designs using a meta-analysis of the electronic
databases MEDLINE, EMBASE, CINAHL and AMED in addition to a review of unpublished material. All included papers were critically
appraised using a modified PEDro critical appraisal tool. Thirty-three studies were eligible, assessing the outcomes of 3532
TKRs. Analysis suggested that there was no significant difference in clinical or radiological outcomes and...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 22, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
A computerized analysis of femoral condyle radii in ACL intact and contralateral ACL reconstructed knees using 3D CTEmail this article to a colleague.
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Abstract The bony geometry of the distal femoral condyles may have a significant influence on knee joint kinematics. The aim of this
study was to analyze the relationship between the size of the medial and lateral femoral condyles in different planes. Seventy-four
three-dimensional (3D) CT reconstructions of 37 patients with ACL intact and contralateral ACL reconstructed knees were used
and the data were imported into a graphical software program. The radii of the medial and lateral femoral condyles were analyzed
in the sagittal, coronal, and axial planes by digitally reconstructed circular arcs along the bo...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 22, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
How to avoid the risk of intraoperative cartilage damage in anatomic four tunnel double bundle anterior cruciate ligament reconstructionEmail this article to a colleague.
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Abstract Double bundle (DB) anterior cruciate ligament (ACL) reconstruction is technically demanding. In order to create four anatomical
anteromedial (AM) and posterolateral (PL) bone tunnels many surgeons adopt new ways of tibial and femoral bone tunnel drilling.
From surgical experience, these technical changes might increase the risk for intraoperative pitfalls. An intraoperative articular
cartilage damage to the medial femoral condyle or the medial tibial plateau could be disastrous for the patient. It may be
caused by an insufficient anteromedial portal technique for femoral AM and PL bone tunnel drilli...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 22, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Comparison of two minimally invasive implantation instrument-sets for total knee arthroplastyEmail this article to a colleague.
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Abstract Several choices of instrument systems are available for minimally invasive surgical approaches. There are reports that one
alternative, the quadriceps sparing, side-cutting instrumentation, results in diminished implantation accuracy. A total of
108 patients were randomized to undergo TKA either using side-cutting implant instrumentation (Group A) or anterior–posterior
mini-incision instrumentation (Group B). All TKAs were operated on with a minimal invasive, mini-midvastus surgical approach.
50% of the TKAs were performed with computer-assistance in each cohort. The radiographic parameters, clini...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 22, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Simultaneous bilateral anterior cruciate ligament reconstruction: a safe optionEmail this article to a colleague.
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We report a case series of eight patients who
underwent simultaneous bilateral ACL reconstruction. We used two-camera stack systems to allow for truly simultaneous bilateral
surgery by two surgical teams. At 2 weeks, all patients were independent in mobility. There was no difference in pivot shift,
Lysholm and Tegner scores at 1 year when compared to published outcomes for unilateral ACL reconstruction. The median duration
of follow-up was 28 months (range 12–50 months). Based on these small numbers, our results demonstrate that simultaneous bilateral
ACL reconstruction is a safe and clinically e...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 21, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Simultaneous surgical management of chronic grade-2 valgus instability of the knee and anterior cruciate ligament deficiency in athletesEmail this article to a colleague.
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We report on 22 patients with chronic grade-2 valgus laxity of the knee combined with chronic anterior cruciate ligament (ACL)
insufficiency, in whom the two lesions were addressed at the same surgical setting. At a minimum follow-up of 24 months, clinical
and functional variables had improved significantly (P < 0.001), and 20 of the 22 patients (91%) had returned to sport at pre-injury level. There were no operative complications
in this series. In selected athletes with chronic symptomatic valgus laxity of the knee combined with ACL insufficiency, surgical
repair of the MCL in association with ACL r...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 17, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Free hamstrings tendon transfer and interference screw fixation for less invasive reconstruction of chronic avulsions of the Achilles tendonEmail this article to a colleague.
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Abstract Reconstruction of chronic avulsions of the Achilles tendon can be technically difficult, as the calcaneus can be totally denuded
of tendon, or only a small tuft of frayed tissue may have remain attached to the calcaneus, and be inadequate to allow a direct
repair. In these patients, if it is not possible to directly reattach the Achilles tendon, a tendon graft can be necessary.
We developed a less invasive technique using a free semitendinosus tendon graft with interference screw fixation in the calcaneus
through a Cincinnati incision. Using this approach, a wide exposure of the insertion of the Ach...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 17, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
RC-QOL score for rotator cuff pathology: adaptation to ItalianEmail this article to a colleague.
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Abstract We translated and adapted the English RC-QOL (rotator cuff quality of life) questionnaire into Italian and performed reliability
and validity evaluations of the Italian RC-QOL version in patients with rotator cuff tears. The RC-QOL English version was
translated into Italian by a bilingual orthopaedic surgeon. The back translation of the Italian version into English was performed
by another bilingual orthopaedic surgeon. The original version was compared with the back translation. The RC-QOL questionnaire
was then administered to 22 subjects (range 45–74 years) with a diagnosis of rotator cuf...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 16, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Impact of monopolar radiofrequency energy on subchondral bone viabilityEmail this article to a colleague.
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Abstract The purpose of this study was to analyze the impact of monopolar radiofrequency energy treatment on subchondral bone viability.
The femoral grooves of six chinchilla bastard rabbits were exposed bilaterally to monopolar radiofrequency energy for 2, 4
and 8 s, creating a total of 36 defects. An intravital fluorescence bone-labeling technique characterized the process of subchondral
bone mineralization within the 3 months following exposure to radiofrequency energy and was analyzed by widefield epifluorescence
optical sectioning microscopy using an ApoTome. After 2 s of radiofrequency e...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 16, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Accuracy of image-free navigation for severely deformed kneesEmail this article to a colleague.
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This study evaluated the accuracy of an image-free navigated total knee arthroplasty (TKA) system when used to align deformed
tibia bone models. The accuracy was assessed in normal, 10° varus, 20° varus, 10° valgus, and 20° valgus tibia bone models
(a total of five tibial models) by direct measurement of the navigated cutting guide. The mean angular errors in the tibial
mechanical axes of the normal, 10°, and 20° varus models, respectively, were 0.0°, 0.7° varus, and 2.4° varus. Thus, the errors
seen with the two varus models were significantly larger than that associated with the normal model. The mean angula...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 16, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Influence of SLAP lesions on chondral lesions of the glenohumeral jointEmail this article to a colleague.
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Abstract From 2004 to 2008 we evaluated 431 SLAP lesions during 3,395 shoulder arthroscopies and compared two groups of patients, one
with SLAP lesion as group I and one without SLAP lesions as group II. Exclusion of type I SLAP lesions, rotator cuff tears
and history of dislocation of the shoulder in both groups left 182 cases in group I, and additionally, exclusion of all-type
SLAP lesions left 251 patients in group II. In group I, SLAP lesion-associated chondral lesions were present in 20% at the
humerus (4% group II, p = 0.005), 18% at the glenoid (5% in group II, p = 0.05) and 14% gl...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 16, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Platelet-rich plasma: intra-articular knee injections produced favorable results on degenerative cartilage lesionsEmail this article to a colleague.
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Abstract Platelet-rich plasma (PRP) is a natural concentrate of autologous blood growth factors experimented in different fields of
medicine in order to test its potential to enhance tissue regeneration. The aim of our study is to explore this novel approach
to treat degenerative lesions of articular cartilage of the knee. One hundred consecutive patients, affected by chronic degenerative
condition of the knee, were treated with PRP intra-articular injections (115 knees treated). The procedure consisted of 150-ml
of venous blood collected and twice centrifugated: 3 PRP units of 5 ml each were used for t...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 16, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Early versus delayed surgery for anterior cruciate ligament reconstruction: a systematic review and meta-analysisEmail this article to a colleague.
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This study systematically reviewed
the literature to determine whether ACL reconstruction should be performed acutely following rupture. Medline, CINAHL, AMED,
EMBASE databases and grey literature were reviewed with a meta-analysis of pooled mean differences where appropriate. Six
papers including 370 ACL reconstructions were included. Early ACL reconstructions were considered as those undertaken within
a mean of 3 weeks post-injury; delayed ACL reconstructions were those undertaken a minimum of 6 weeks post-injury. We found
there was no difference in clinical outcome between patients who underwent early com...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 16, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Static progressive stretch improves range of motion in arthrofibrosis following total knee arthroplastyEmail this article to a colleague.
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This study evaluated a static progressive stretching device as a treatment method for patients
who had refractory knee stiffness after total knee arthroplasty. Twenty-five patients who had knee stiffness and no improvement
with conventional physical therapy modalities were treated with the device. After a median of 7 weeks (range, 3–16 weeks),
the median increase in range of motion was 25° (range, 8–82°). The median gain in knee active flexion was 19° (range, 5–80°).
Ninety-two percent of patients were satisfied with the results. The authors believe static progressive stretching devices
may be an e...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 14, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Bilateral bucket handle medial plica in an adolescentEmail this article to a colleague.
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Abstract A case of bilateral knee pain and compromised function in an adolescent tennis player caused by symptomatic fenestrated bucket
handle medial plicae is presented. Arthroscopic resection relieved all symptoms. The patient returned to competitive tennis
and was without complaint at 12 month (left knee) and 18 month (right knee) follow-up.
Content Type Journal ArticleCategory KneeDOI 10.1007/s00167-009-0954-2Authors
Brian Curtin, University of Louisville Division of Sports Medicine, Department of Orthopaedic Surgery 210 East Gray St., Suite 1003 Louisville KY 40202 USADoug Abbott, Universit...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 13, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Botulinum toxin improves reduced dorsiflexion after Achilles tendon surgeryEmail this article to a colleague.
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In conclusion, treatment of the calf muscles with BOTOX® is a safe and effective method to improve restricted dorsiflexion in patients after Achilles tendon repair.
Content Type Journal ArticleCategory AnkleDOI 10.1007/s00167-009-0948-0Authors
Iris Reuter, Justus-Liebig-University Giessen Department of Neurology Am Steg 14 35392 Giessen GermanyOlaf Lorbach, Klinikum Osnabrück Department of Orthopedic and Trauma Surgery Am Finkenhügel 1 49076 Osnabrück GermanySabine Mehnert, Justus-Liebig-University Giessen Department of Neurology Am Steg 14 35392 Giessen GermanyManfred Kaps, Justus-Liebig-University Giessen Depart...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 13, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
In vitro analysis of patellar kinematics: validation of an opto-electronic cinematic analysis protocolEmail this article to a colleague.
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Abstract Opto-electronic cinematic analysis has already proven useful in the investigation of patients with a knee replacement; however,
neither patellar tracking nor the various positional parameters relevant to instability such as patellar tilt and/or patellar
shift have ever been specifically evaluated using this type of system. The aim of this research was to validate the relevance
of this type of cinematic analysis in order to use it in the evaluation of the main factors underlying patellar instability.
Six fresh-frozen anatomical specimens were studied. The data were acquired using the Motion Analysis...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 13, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Arthroscopic fixation of posterior cruciate ligament avulsion fractures: a new minimally invasive techniqueEmail this article to a colleague.
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We present a new all-inside technique for the reduction and fixation of posterior cruciate ligament avulsion fractures. Two
suture discs and a mersilene band are used to continuously exert even pressure on the avulsion fragment, thereby maintaining
reduction during healing. The risk of a loss of reduction and further fragmentation is minimized.
Content Type Journal ArticleCategory KneeDOI 10.1007/s00167-009-0937-3Authors
Uwe Horas, Justus Liebig University of Giessen Department of Trauma Surgery Giessen GermanyStefan A. Meissner, Justus Liebig University of Giessen Department of Trauma Surgery Giessen GermanyChristi...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 13, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
The arthroscopic deepening trochleoplastyEmail this article to a colleague.
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Abstract Since a dysplastic trochlea has been identified as the main pathomorphology in recurrent patellofemoral instability, trochleoplasty
became a surgical solution in some of these cases. However, in comparison to other surgical procedures stabilizing the patellofemoral
joint, trochleoplasty is a major operation with an arthrotomy, and associated typical risks of open surgery such as arthrofibrosis.
Therefore, we developed a technique to perform an arthroscopic deepening trochleoplasty via suprapatellar portals using shaver
burrs. Comparable to the open procedure, a cartilage flake is released and a new ...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 13, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Tendon–bone contact pressure and biomechanical evaluation of a modified suture-bridge technique for rotator cuff repairEmail this article to a colleague.
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Abstract The aim of the study was to evaluate the time-zero mechanical and footprint properties of a suture-bridge technique for rotator
cuff repair in an animal model. Thirty fresh-frozen sheep shoulders were randomly assigned among three investigation groups:
(1) cyclic loading, (2) load-to-failure testing, and (3) tendon–bone interface contact pressure measurement. Shoulders were
cyclically loaded from 10 to 180 N and displacement to gap formation of 5- and 10-mm at the repair site. Cycles to failure
were determined. Additionally, the ultimate tensile strength and stiffness were verified along with...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 13, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Arthroscopic tuberoplasty for subacromial impingement secondary to proximal humeral malunionEmail this article to a colleague.
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This article reports a technique of arthroscopic tuberoplasty based on combined intra- and extra-articular
transtendinous abrasion of the proximal end of the greater tuberosity for malunions with severe upward displacement of the
greater tuberosity. This procedure allows for major preservation of the rotator cuff insertion.
Content Type Journal ArticleCategory ShoulderDOI 10.1007/s00167-009-0939-1Authors
Emilio Calvo, Fundación Jiménez Díaz Shoulder Surgery Unit, Department of Orthopaedic Surgery Avda. Reyes Católicos, 2 28040 Madrid SpainIgnacio Merino-Gutierrez, Fundación Jiménez Díaz Shoulder Surgery Unit,...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 13, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Medial patellofemoral ligament reconstruction with hanger lifting procedureEmail this article to a colleague.
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Abstract Medial patellofemoral ligament (MPFL) reconstruction has become a common surgical procedure in the treatment of recurrent
dislocation of the patella. A technique of MPFL reconstruction with the “hanger lifting procedure” using extra-articular arthroscopy
is presented. After conventional intra-articular arthroscopy, an incision about 1 cm long is made at the superomedial edge
of the patella. A bone tunnel is created with a guide pin and overdrilling method, from this portal to the subcutaneous surface
of the patella. Using a semi-loop-shaped hanger, the harvested Gracillis tendon is passed t...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 13, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Tibial tunnel widening after anterior cruciate ligament reconstructions with hamstring tendons using Rigidfix femoral fixation and Intrafix tibial fixationEmail this article to a colleague.
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In conclusion, hamstring
ACL reconstruction using Rigidfix and Intrafix fixation showed less widening of the tibial tunnels than observed in previously
published studies.
Content Type Journal ArticleCategory KneeDOI 10.1007/s00167-009-0951-5Authors
Nam-Hong Choi, Eulji Medical Center Department of Orthopaedic Surgery 280-1, Hagye-1-dong Nowon-gu, Seoul 139-231 KoreaJung-Hoon Lee, United Hospital Department of Orthopaedic Surgery 957-14, Dogok-dong Gangnam-gu, Seoul 135-270 KoreaKyung-Mo Son, United Hospital Department of Orthopaedic Surgery 957-14, Dogok-dong Gangnam-gu, Seoul 135-270 KoreaBrian N. Victoroff, Case W...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 13, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Medial plica in patients with knee osteoarthritis: a histomorphological studyEmail this article to a colleague.
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Abstract The gross appearance and histological features of the medial plicae removed from 48 consecutive patients who had received
total knee replacement for severe medial compartment osteoarthritis of their knees were investigated prospectively. The prevalence
of the medial plica was 100%. A small branch of skeletal muscle originating from articularis genu inserting into the proximal
synovial stroma of the medial plica was found in all knees. The synovial fold of the distal part of the medial plica was disclosed
to have a close relationship with the gracilis tendon sheath. Histologically, the majority of ad...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 13, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Autologous chondrocyte implantation versus microfracture for knee cartilage injury: a prospective randomized trial, with 2-year follow-upEmail this article to a colleague.
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The objective was to evaluate the functional performance over a 2-year period following autologous chondrocyte implantation
(ACI) in an open knee procedure compared to microfracture. Objective functional outcome was studied as secondary analysis
in a subgroup of patients, in a randomized clinical trial, with concealed allocation and independent evaluators. Sixty-seven
patients with local cartilage defect, with a mean size of 2.4 cm² (SD 1.5) of the femoral condyle of the knee were included.
Thirty-three patients underwent the microfracture and 34 the ACI procedure. An identical rehabilitation protocol was impleme...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 10, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Primary anterior shoulder dislocation in young athletes: fix them!Email this article to a colleague.
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Content Type Journal ArticleCategory EditorialDOI 10.1007/s00167-009-0950-6Authors
Pietro Randelli, Università degli Studi di Milano Dipartimento di Scienze Medico-Chirurgiche, Policlinico San Donato IRCCS Via Morandi 30, San Donato Milanese 20097 Milan ItalyEttore Taverna, Istituto Ortopedico Galeazzi Milan Italy
Journal Knee Surgery, Sports Traumatology, ArthroscopyOnline ISSN 1433-7347Print ISSN 0942-2056 (Source: Knee Surgery, Sports Traumatology, Arthroscopy)
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 7, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Effect of a biplanar osteotomy on primary stability following high tibial osteotomy: a biomechanical cadaver studyEmail this article to a colleague.
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Abstract Open-wedge high tibial osteotomy (HTO) is becoming increasingly popular for the treatment of varus gonarthrosis in the active
patient. The various implants used in HTO differ with regard to its design, the fixation stability and osteotomy technique.
It is assumed that the combination of a plate fixator with a biplanar, v-shaped osteotomy supports bone healing. So far, there
are no biomechanical studies that quantify the stabilizing effect of a biplanar versus uniplanar osteotomy. We hypothesized
that a significant increase in primary stability of bone-implant constructs is achieved when using a bipl...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - October 7, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
Prophylactic use of antibiotic-loaded bone cement in primary total knee replacementEmail this article to a colleague.
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Abstract Despite significant advances in intraoperative antimicrobial procedures, deep infection remains the most devastating complication
following total joint arthroplasty. Clinical studies’ results and safety profile of antibiotic-loaded bone cement are discussed
in this review. Antibiotic bone cement prophylaxis is a safe and effective strategy in reducing the risk of deep infection
following primary total joint arthroplasty.
Content Type Journal ArticleCategory KneeDOI 10.1007/s00167-009-0921-yAuthors
Pietro Randelli, Università degli Studi di Milano, Policlinico San Donato IRCCS Dipartimento di ...
Source: Knee Surgery, Sports Traumatology, Arthroscopy - September 30, 2009 Category: Orthopaedics Tags: Knee Surgery, Sports Traumatology, Arthroscopy Source Type: journals
