Objective To observe the pathological changes of idiopathic avascular necrosis of the femeral head (ANFH) and study the role of arteriole injury in the pathogenesis of ANFH.

• 目的观察特发性股骨头缺血坏死(ANFH)股骨头内的病理变化,分析小动脉损伤在发病机制中的作用。