Planovalgus foot deformity may predispose the patient to patellar malalignment and maltracking, and patellofemoral pain may be improved with use of amedial longitudinal arch support.

• 足外翻畸形也许会更容易导致病人髌骨排列不整、错位，而髌骨股骨疼痛可能因为使用一个中间中型的拱形支持得到缓解。