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Part13 SPORTS MEDICINE > Chapter 47 Recurrent Dislocations

著者:Barry B. Phillips
 
Recurrent instability can result from congenital, developmental, or traumatic ligamentous or bony containment deficiencies or from deformities caused by muscular imbalance, joint incongruity, or joint malalignment in one or more planes. Proper treatment begins with knowledge and skillful evaluation of deformities before initiating a specific treatment plan.

Patella  
    Patellar instability results from a direct or indirect valgus-producing force. When significant force results in dislocation, a tear of medial soft-tissue restraints, as well as an osteochondral defect in the medial facet of the patella or lateral femoral condyle, may result. Dislocations in skeletally immature individuals tend to recur as in other joints, with recurrences in two thirds of patients.
     
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