Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association
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This article describes a medial patellofemoral ligament (MPFL) reconstruction procedure using an artificial ligament for recurrent patellar dislocation. The MPFL has been shown biomechanically to be the primary restraint among the medial patellar stabilizers. ⋯ In this article, we describe the detailed surgical technique and its rationale. We believe technique has also wide applications in MPFL reconstruction using autogenous tendons.
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Comparative Study
Biomechanical comparison of transosseous and capsular repair of peripheral triangular fibrocartilage tears.
The purpose of this study was to biomechanically compare the repair strength of peripheral triangular fibrocartilage complex (TFCC) repairs to the distal ulna using transosseous sutures (group I) versus TFCC repairs to the extensor carpi ulnaris tendon subsheath and surrounding dorsal capsule (group II). ⋯ While disruption of the TFCC does significantly increase distal radioulnar joint (DRUJ) instability and repair of the TFCC does significantly restore DRUJ stability, the results of this study do not show a significant biomechanical difference between the 2 TFCC repair techniques in a cadaveric model.
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Review Case Reports
Arthroscopic removal of a loose body osteophyte fragment after superior patellar dislocation with locked osteophytes.
The authors report the case of a loose body from a fractured osteophyte after a superiorly dislocated patella with locked osteophytes. Few cases of superiorly dislocated patellae have been reported in the literature and no cases of osteophyte fracture fragments after locked osteophytes with subsequent arthroscopic loose body removal have been reported. ⋯ Patella alta in the face of patellofemoral arthrosis should be considered a risk factor for loose body formation. Therefore, recurrent superior patellar dislocation and locking osteophytes may be a relative indication for pre-emptive arthroscopic debridement of locked osteophytes.
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A 25-year-old active-duty police officer was found to have an intra-articular foreign body on radiographic study of his left knee joint. He had a gunshot wound to the midthigh 54 months prior to the presentation of symptoms. The bullet was lodged in the soft tissue without involving neurovascular structures. ⋯ There was no injury inside the joint related to the loose body. These findings were consistent with a migrating bullet from the midthigh to the knee joint. The patient recovered uneventfully and returned to work.
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The goal of this study was to review current knowledge on the anatomy, biomechanics, and functions of the meniscofemoral ligaments. ⋯ The contribution of the meniscofemoral ligaments in the prognosis and management of posterior cruciate ligament and meniscal injuries remains undetermined. An examination of the structure, properties, and function of the meniscofemoral ligaments reveals that more biomechanical and imaging research is required, together with clinical observations, on the consequences of rupture of these ligaments.