Physiological articular contact kinematics and morphological femoral condyle translations of the tibiofemoral joint.
Physiological articular contact kinematics and morphological femoral condyle translations of the tibiofemoral joint.
复制标题
胫股关节的生理关节接触运动学和形态学股骨髁平移。
DOI：
10.1016/j.jbiomech.2021.110536
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发表时间：
2021-06-23
影响因子：
2.4
通讯作者：
Li G
中科院分区：
文献类型：
--
作者：
Zhou C;Zhang Z;Rao Z;Foster T;Bedair H;Li G
膝关节活动过程中胫股关节软骨接触位置的变化代表了膝关节的生理功能特征。然而，大多数研究报道了使用形态屈曲轴的胫骨和股骨的相对运动。关于股骨髁的形态运动和生理性胫股关节软骨接触位置变化的比较，鲜有报道。本研究采用MRI和双透视成像(DFIS)相结合的技术，比较了20膝在活体负重单腿弓步从完全伸展到屈膝120°时的形态和生理运动学测量。采用经上髁轴(TEA)、几何中心轴(GCA)和等高轴(IHA)三个屈曲轴测量股骨髁的形态运动。在低屈曲角度时，股骨内侧髁前移，与接触点相反，并伴有股骨外髁旋转度急剧增加。在屈曲120°时，股骨外髁的形态测量值比接触位置的测量值偏后。结果表明，不同屈曲轴的股骨髁的平移和轴向旋转的形态测量值不同，不能代表生理的关节接触运动学。膝关节运动的生物力学评估应包括形态和生理运动学数据，以准确显示膝关节的功能。
The changes of tibiofemoral articular cartilage contact locations during knee activities represents a physiological functional characteristics of the knee. However, most studies reported relative motions of the tibia and femur using morphological flexion axes. Few data have been reported on comparisons of morphological femoral condyle motions and physiological tibiofemoral cartilage contact location changes. This study compared the morphological and physiological kinematic measures of 20 knees during an in vivo weightbearing single leg lunge from full extension to 120° of flexion using a combined MRI and dual fluoroscopic imaging system (DFIS) technique. The morphological femoral condyle motion was measured using three flexion axes: trans-epicondylar axis (TEA), geometric center axis (GCA) and iso-height axis (IHA). At low flexion angles, the medial femoral condyle moved anteriorly, opposite to that of the contact points, and was accompanied with a sharp increase in external femoral condyle rotation. At 120° of flexion, the morphological measures of the lateral femoral condyle were more posteriorly positioned than those of the contact locations. The data showed that the morphological measures of femoral condyle translations and axial rotations varied with different flexion axes and did not represent the physiological articular contact kinematics. Biomechanical evaluations of the knee joint motion should include both morphological and physiological kinematics data to accurately demonstrate the functionality of the knee.
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影响因子：
2.4
作者：
Miranda, Daniel L.;Rainbow, Michael J.;Leventhal, Evan L.;Crisco, Joseph J.;Fleming, Braden C.
通讯作者：
Fleming, Braden C.
影响因子：
2.4
作者：
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3.7
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影响因子：
2.4
作者：
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通讯作者：
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