总之，虽然在实验室条件下髋关节表面置换部件的几何学可能限制他们的活动度，临床病人可能期望恢复到正常，如果不是更好，活动度则在HRA之后。
In summary, although the geometry of hip resurfacing components may limit their ROM in the laboratory setting, clinically patients may expect to achieve equivalent, if not better, ROM following HRA.
结果：(1)术后42例得到随访，平均随访11.4(3 ~22)月，膝关节活动度均在正常范围。
Results: (1) 42 cases have been followed up for average 11.4 (3-22) months, the knee join movement degrees were all normal.
结果：(1)术后42例得到随访，平均随访11.4(3 ~22)月，膝关节活动度均在正常范围。
Results: (1) 42 cases have been followed up for average 11.4 (3-22) months, the knee join movement degrees were all normal.
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