Effect of the posterior cruciate ligament on posterior stability of the knee in high flexion
Effect of the posterior cruciate ligament on posterior stability of the knee in high flexion
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DOI：
10.1016/j.jbiomech.2003.09.031
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发表时间：
2004-05-01
影响因子：
2.4
通讯作者：
Rubash, HE
中科院分区：
文献类型：
--
作者：
Li, G;Most, E;Rubash, HE
大多数膝关节生物力学研究都集中在 0 度到 120 度之间的膝关节弯曲角度。后十字韧带 (PCL) 已被证明可以限制膝关节在该屈曲范围内的后松弛。然而，人们对 PCL 在较高屈曲角度（大于 120 度）下的功能知之甚少。这项体外研究检查了在胫骨后负荷和各种肌肉负荷下高屈曲切割 PCL 前后的膝关节运动学。结果表明，尽管 PCL 在限制低屈曲角度下的胫骨后平移方面发挥着重要作用，但在施加载荷下，PCL 在限制 150 度屈曲时的胫骨平移方面几乎没有作用。 (C) 2003 Elsevier Ltd. 保留所有权利。
Most biomechanical studies of the knee have focused on knee flexion angles between 0degrees and 120degrees. The posterior cruciate ligament (PCL) has been shown to constrain posterior laxity of the knee ill this range of flexion. However, little is known about PCL function in higher flexion angles (greater than 120degrees). This in vitro study examined knee kinematics before and after cutting the PCL at high flexion under a posterior tibial load and various muscle loads. The results demonstrated that although the PCL plays in important role in constraining posterior tibial translation at low flexion angles, the PCL had little effect in constraining tibial translation at 150degrees of flexion under the applied loads. (C) 2003 Elsevier Ltd. All rights reserved.