predisposing factors
Last reviewed 01/2018
Patella dislocation is more common in adolescence, and in girls than boys.
Factors that may predispose to dislocation include:
- generalised ligamentous laxity
- small lateral femoral condyle - relative to opposing tibial condyle
- small intercondylar groove
- small and / or high riding patella
- significant genu valgus deformity
- quadriceps weakness
- history of patellar subluxation
- tear of medial patellofemoral ligament
- below-the-knee amputations (1)
Dislocation itself, may tear the medial joint capsule so as to make future dislocation easier.
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