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The aim of the current study was to document regeneration of the articular cartilage after correction of varus deformity for osteoarthritis of the knee. The repair of articular cartilage after high tibial valgus osteotomy for medial compartmental osteoarthritis was observed in 146 knees of 115 patients. The mean age of the patients at osteotomy was 65+/-7 years (range 47-80). Observations were made...
The aim of this study is to evaluate the effect of combined posterior cruciate ligament (PCL) and postero-lateral corner (PLC) reconstruction on laxity and three-dimensional kinematics of cadaver knees. We performed anatomical double bundle PCL reconstruction, and functional one bundle 'over-the-bottom' PCL reconstruction combined with one type of PLC reconstruction, running from the postero-lateral...
The authors present a 45-year-old man with bone marrow edema syndrome (BMES) of the medial condyle of the knee. Early diagnosis of BMES was based upon clinical, bone scintigraphy and magnetic resonance (MRI) findings. After failure of the conservative treatment, core decompression was performed. Histological examination showed no evidence of osteoporosis or osteonecrosis. Within 2 months after the...
Rotation of the knee has been used to isolate the strength of the medial and lateral hamstrings during manual testing of the knee flexors. The purpose of this study was to determine if medial and lateral rotation of the knee during manual knee flexor strength testing increased the electromyographic activity of the respective hamstrings. Twenty-three women between 22 and 36 years old with no history...
A retrospective analysis of 100 out of 108 cases has been audited for suitability of bilateral knee arthroscopy as a day-case procedure. Fifty-three female and 47 male patients with age range of 15-78 years underwent bilateral knee arthroscopy. All patients had general anaesthetic and were ASA grade 1 or 2. Eight patients had more than one diagnosis and procedures. Post-operatively 68% could walk...
We demonstrate a new method in which a drilling is made from the intercondylar space, and its efficacy in treating osteochondritis dissecans (OCD) of the knee in skeletally immature patients with relatively stable lesions with an intact articular surface, in cases where there was failure of initial non-operative management. The lesions of 16 knees of 12 patients with OCD of the femoral condyles failed...
Thirty-eight patients with symptomatic knee osteoarthritis without mechanical symptoms were randomised after informed consent to receive either a course of intra-articular Hyalgan injections or an arthroscopic washout. The patients were prospectively assessed pre-intervention, 6 weeks, 3 months, 6 months and 1 year using a 10 cm visual analogue pain score, the Knee Society function score and the Lequesne...
The medial patellofemoral ligament (MPFL) is a band of retinacular tissue connecting the femoral medial epicondyle to the medial edge of the patella. The MPFL is approximately 55 mm long, and its width has been reported to range from 3 to 30 mm. The MPFL is overlaid by the distal part of vastus medialis obliquus to a variable extent, and fibres of MPFL merge into the deep aspect of the muscle. Despite...
A non-linear 3D finite element model of the passive human tibiofemoral knee joint consisting of two bony structures and their articular cartilage layers, menisci, and four principal ligaments was used to investigate the detailed response of the unconstrained joint under up to 100 N posterior femoral force at different flexion angles from 0 to 90 o . The analysis was repeated after the transection...
Introduction: Reconstruction of the MPFL for recurrent and acute lateral dislocation of the patella is becoming more accepted. This study aimed to further define the medial patellofemoral ligament (MPFL) anatomy and to describe the most suitable sites for graft attachment when reconstructing the MPFL. Materials and methods: Anatomical dissection was performed on 25 embalmed knee specimens. Four separate...
We report on the results of a prospective randomised controlled trial to evaluate the use of an intra-articular drain following arthroscopically assisted ACL reconstruction using patellar tendon autograft. Forty-nine patients were recruited for the trial and randomised into receiving or not receiving a drain following surgery. An independent observer who was blinded for the use of the drain assessed...
The position of the femoral component in 362 total knee replacements was assessed radiologically. A subgroup of 32 knees, 18 of which had perfect alignment and 14 with imperfect alignment underwent CT scout scans of the femur from which the mechanical axis of the femur could be measured. Radiologically 92% of all components were implanted within 3 o of the target value. There was close correlation...
The varus/valgus alignment of the tibial components of 350 total knee arthroplasties was assessed radiologically. All the tibial components were implanted using an extramedullary guide under the supervision of the senior author. Of components, 96.3% were implanted within 2 o of the perpendicular to the longitudinal axis of the tibia. In order to validate our X-ray assessment, a subgroup of...
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