提高膝关节抗旋转功能。
我们认为，提高腘绳肌肌腱单束重建ACL手术的疗效主要有如下几方面：(1)术中准确的骨隧道定位;(2)股骨定位于10点位;(3)使用4～5股腘绳肌肌腱，移植物直径大于8 mm，保证移植物的初始强度;(4)使4束移植物张力相同;(5)应用坚强的内固定防止移植物滑动;(6)根据固定方法与骨质条件选择合适的康复方法。从本组随访结果看，关节镜下Intrafix、Rigidfix系统固定自体腘绳肌腱单束重建膝关节ACL近期疗效满意。
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