髂胫束综合征(iliotibial band syndrome,ITBS)的发病原因为髂胫束在股骨外上髁上方滑动造成反复摩擦,伸膝时髂胫束向前移动,屈膝时向后移动,并在屈、伸膝时均保持张力。受累软组织可能包括附着于股骨外上髁的髂胫束、下方的脂肪组织和关节囊,以及附着于胫骨 Gerdy 结节的远端肌腱15-19。
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