摘要股骨转子间骨折临床多见,约占髋部骨折的50%,以老年患者为主。由于股骨转子间解剖及应力分布的特殊性,对于不稳定的股骨转子间骨折,多数学者倾向于髓内固定系统。股骨近端防旋髓内钉（proximal femoral nail anti-rotation,PFNA）近年来得到广泛应用,在取得明显效果的同时,也有PFNA内，
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