Treatment of the medial collateral ligament injury
Treatment of the medial collateral ligament injury
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内侧副韧带损伤的治疗
DOI：
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发表时间：
1987
影响因子：
4.8
通讯作者：
S. L. Woo
中科院分区：
文献类型：
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作者：
M. Inoue;E. McGurk;J. Hollis;S. L. Woo
本研究的目的是解释内侧副韧带（MCL）和ACL的功能作用，以及它们如何影响孤立MCL损伤后膝关节的运动学。内翻-外翻关节松弛度定量测量使用的设备，允许各种自由度（DOF）的关节运动过程中的应用程序的内翻-外翻弯曲力矩的狗膝关节。当膝关节活动受限于3个自由度（内翻-外翻旋转、近端-远端和内外侧平移）时，切开MCL后外翻松弛度显著增加（171%）。因此，MCL是3 DOF模式中外翻弯矩的主要约束。然而，当膝关节运动的DOF增加到5（通过增加轴向胫骨旋转和前后平移）时，MCL切片对外翻松弛的影响变得很小（增加21%）。在这种情况下，胫骨外、内轴向旋转分别与膝关节的内翻和外翻旋转耦合，ACL也起到抑制内翻-外翻旋转的作用。本研究的结果表明，在正常的膝关节运动，在外翻旋转MCL的功能缺陷得到补偿的其余结构，特别是ACL。
The purpose of this study was to explain the functional roles of the medial collateral ligament (MCL) and the ACL and how they affect the kinematics of the knee joint after isolated MCL injury. Varus-valgus joint laxity was quantitatively measured using a device which al lowed various degrees of freedom (DOF) of joint motion during application of a varus-valgus bending moment to the canine knee joint. When the knee motion was limited to 3 DOF (varus-valgus rotation, proximal-distal, and medial-lateral translation), valgus laxity increased significantly (171%) after sectioning the MCL. Thus, the MCL was the primary restraint to the valgus bending moment in the 3 DOF mode. However, the effect of sectioning the MCL on valgus laxity became minimal (21% increase) when the DOF of knee motion was increased to 5 (by adding axial tibial rotation and ante rior-posterior translation). In this situation, external and internal tibial axial rotation were coupled with the varus and valgus rotation of the knee joint, respectively, and the ACL also functioned to restrain the varus-valgus rotation. The results of this study suggest that under normal knee joint motion, the functional deficit of the MCL in valgus rotation was compensated for by the remaining structures, especially by the ACL.