胫骨高位截骨相关数据的健康人群测量△

Lower extremity alignment measurement on coronal plane related to high tibial osteotomy in healthy subjects

摘要:

［目的］ 测量中国健康人群冠状面下肢力线参数，为胫骨高位截骨术 （high tibial osteotomy, HTO） 提供参考。［方法］ 纳入 100 例健康人双下肢全长片为研究对象，测量其髋-膝-踝角 （hip-knee-ankle angle, HKA）、胫股解剖角 （anatomic femorotibial angle, aFTA）、股骨远端外侧解剖角（anatomic lateral distal femoral angle, aLDFA）、股骨远端外侧机械角（mechanical lateral distal femoral angle, mLDFA）、胫骨近端内侧角 （medial proximal tibial angle, MPTA）、胫骨内翻角 （tibial bone varus angle, TBVA）及关节线相交角（joint line convergence angle, JLCA）。按性别、年龄分组后比较，并与西方国家健康人群下肢力线参数进行比较。［结果］ 本研究整体 HKA、aFTA、aLDFA、mLDFA 分别为 （178.32±2.84）°、（175.01±3.28）°、（80.71±2.55）°、 （86.83±2.41）°，而 MPTA、TBVA 、JLCA 分别为（87.59±3.02）°、（1.61±2.95）°、（1.82±1.27）°。按性别比较，男性组 JLCA 显著小于女性组 （P<0.05）。按年龄比较，中年组 JLCA 显著小于老年组 （P<0.05）。此外，本研究人群的 JLCA 及 MPTA 均显著大于，而 mLDFA 则显著小于西方健康人群（P<0.05）。［结论］本研究人群下肢力线呈内翻趋势，主要源于膝关节内，尤其女性和老年人明显，本研究结果对 HTO 术有参考意义。

Abstract:

[Objective] To measure lower extremity alignment parameter on coronal plane in healthy Chinese people for a reference in high tibial osteotomy (HTO) . [Methods] A total of 100 healthy subjects who had full-length radiographs of the bilateral low extremities tak- en were enrolled in the study. The hip-knee-ankle angle (HKA) , anatomic femorotibial angle (aFTA) , anatomic lateral distal femoral angle (aLDFA) , mechanical lateral distal femoral angle ( mLDFA) , medial proximal tibial angle (MPTA) , joint line convergence angle (JLCA) and tibial bone varus angle (TBVA) were measured, and compared in term of genders and ages, as well as with those in western countries. [Results] The overall HKA, aFTA, aLDFA and mLDFA were of (178.32±2.84)°, (175.01±3.28)°, (80.71±2.55)°, (86.83±2.41)°, respective- ly. While the MPTA, TBVA and JLCA were of (87.59±3.02)°, (1.61±2.95)°, (1.82±1.27)°, respectively. The male had significantly lower JL- CA than the female (P＜0.05) , whereas the middle age had significantly lower JLCA than the elder group (P＜0.05) . In addition, JLCA and MPTA measure in the population of this study were significantly higher, while mLDFA was significantly lower than those of western healthy population (P＜0.05) . [Conclusion] In this study, the population has a varus tendency in low extremity alignment, mainly originating intraar- ticularly, especially in women and the elderly, which have reference significance for HTO.