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Medial Patellofemoral Ligament Surgery

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Evolution of Medial Patellofemoral Ligament Surgery

In the past, soft tissue tightening techniques were used to attempt to strengthen the medial patellofemoral ligament. Unfortunately, these techniques were found to not be as effective in preventing recurrence of dislocation as reconstruction of the MPFL. The key to successful MPFL reconstruction is to reconstruct the ligament back to its original anatomic location on the kneecap (patella) and the thighbone (femur). Proper tensioning is also crucial to allow for the patella to track normally within the femur groove. The goals of reconstruction are to provide stability to the knee and the return the patient back to normal activities. While early MPFL tears may be treated with repair of the ligament; the treatment of choice is generally to reconstruct the ligament with either the patient’s own tissues (autograft) or a donor’s tissue (allograft). There are various ways to secure the graft to the bones including suture buttons, suture bone anchors, and bone interference screws. Risks of this surgery include potentially fracturing the kneecap or recurrent knee instability.

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