Kim Yoon Hyuk, Purevsuren Tserenchimed, Kim Kyungsoo, Oh Kwang-Jun
Department of Mechanical Engineering, Kyung Hee University, Yongin, Korea.
Proc Inst Mech Eng H. 2013 Sep;227(9):968-75. doi: 10.1177/0954411913490456. Epub 2013 Jun 4.
It has been reported that posterolateral corner structures, including the lateral collateral ligament, the popliteus tendon, and the popliteofibular ligament, may play important roles in reducing external rotational and posterior translational instabilities. However, there are few studies focusing on the quantitative influence of posterolateral corner structures on knee joint stability, due to the difficulty of controlling experimental conditions. In this study, a knee model that included posterolateral corner structures was developed. It was validated by comparison to previous experimental studies using the posterior drawer test, dial test, and varus stress test. The posterior translation, external rotation, and varus rotation were then predicted in order to investigate the contribution of posterolateral corner structures to translational and rotational stabilities. Our results indicate that posterolateral corner structures, including the popliteofibular ligament and the popliteus tendon, could contribute to posterior translational and external rotational stabilities, as clinical observations had suggested. Therefore, the addition of posterolateral corner structures to knee joint models may improve the utility of such models.
据报道，包括外侧副韧带、腘肌腱和腘腓韧带在内的后外侧角结构，可能在减少膝关节的外旋和后向平移不稳定方面发挥重要作用。然而，由于控制实验条件的困难，很少有研究关注后外侧角结构对膝关节稳定性的定量影响。在本研究中，构建了一个包含后外侧角结构的膝关节模型。通过与先前使用后抽屉试验、旋转试验和内翻应力试验的实验研究进行比较，对该模型进行了验证。然后预测后向平移、外旋和内翻旋转，以研究后外侧角结构对平移和旋转稳定性的贡献。我们的结果表明，正如临床观察所提示的，包括腘腓韧带和腘肌腱在内的后外侧角结构可能有助于后向平移和外旋稳定性。因此，在膝关节模型中加入后外侧角结构可能会提高此类模型的实用性。
