Sensitivity of the knee joint kinematics calculation to selection of flexion axes
Sensitivity of the knee joint kinematics calculation to selection of flexion axes
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DOI：
10.1016/j.jbiomech.2004.01.025
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发表时间：
2004-11-01
影响因子：
2.4
通讯作者：
Li, G
中科院分区：
文献类型：
--
作者：
Most, E;Axe, J;Li, G
文献中已使用各种屈曲轴来描述膝关节运动学。本研究测量了六个尸体人膝关节标本的被动膝关节运动学，使用两个广泛接受的屈曲轴：经髁上轴和几何中心轴。发现这两个轴形成4.0度+/-0.8度的角度。对于相同的膝关节运动，使用经上髁轴计算的胫骨旋转与使用几何中心轴获得的旋转显著不同。在90 °屈曲时，使用经髁上轴获得的胫骨旋转为4.8 ° +/-9.4 °，而在相同屈曲角度下使用几何中心轴记录的旋转为13.8 ° +/-10.2 °。膝关节屈曲150 °时，从经上髁和几何中心轴获得的旋转分别为7.2 ° ± 5.7 °和19.9 ° ± 6.9 °。数据表明，在报告膝关节运动学时，需要明确屈曲轴的定义。(C)2004爱思唯尔有限公司保留所有权利。
Various flexion axes have been used in the literature to describe knee joint kinematics. This study measured the passive knee kinematics of six cadaveric human knee specimens using two widely accepted flexion axes; transepicondylar axis and the geometric center axis. These two axes were found to form an angle of 4.0degrees +/- 0.8degrees. The tibial rotation calculated using the transepicondylar axis was significantly different than the rotation obtained using the geometric center axis for the same knee motion. At 90degrees of flexion, the tibial rotation obtained using the transepicondylar axis was 4.8degrees +/- 9.4degrees whereas the rotation recorded using the geometric center axis at the same flexion angle was 13.8degrees +/- 10.2degrees. At 150degrees of knee flexion, the rotations obtained from the transepicondylar and the geometric center axes were 7.2degrees +/- 5.7degrees and 19.9degrees +/- 6.9degrees, respectively. The data suggest that a clear definition of the flexion axis is necessary when reporting knee joint kinematics. (C) 2004 Elsevier Ltd. All rights reserved.