Recurrent subluxation and dislocation of the patella in association with athletic injuries.


Seventy-one patients with 81 operations for correction of patellar instability are reviewed. Follow-up was for at least five years. The various preoperative symptoms, signs, and radiographic findings are presented. Two types of patellar instability become clear. One type is usually bilateral and secondary to general ligamentous laxity. A second type… (More)


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