Objective Compared with ct scan method and "bare-bone method" of measuring femoral torsion Angle, to study the reliability of measuring torsion Angle by means of ct method.
目的通过CT法及裸骨投照测量法(以下简称“裸骨法”)测量股骨扭转角的比较，探讨CT测量扭转角的可靠性。
Objective: to study the femoral offset and its relationship with femoral collo-diaphyseal Angle and torsion Angle.
目的：探讨股骨偏心距测量数据及其与股骨颈干角、股骨颈扭转角相关性。
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