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首页> 外文会议>Canadian Congress of Applied Mechanics(CANCAM 2005); 20050530-0602; Montreal(CA) >Effects of Quadriceps and Restraining Forces on Knee Joint Mechanics in Flexion
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Effects of Quadriceps and Restraining Forces on Knee Joint Mechanics in Flexion

机译：股四头肌和约束力对屈膝关节力学的影响

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摘要

The patellofemoral (PF) joint is frequently the source of the knee anterior pain due to disturbances in normal tracking, instability, and excessive pressure syndrome. The study of functional biomechanics of the entire knee joint is crucial in investigation of interactions between quadriceps/hamstrings activation levels, cruciate ligament forces, contact forces, and kinematics in intact joints, those with an injured cruciate ligament, and following reconstruction surgeries. Such knowledge is crucial in preventive and treatment procedures. Despite numerous experimental investigations on biomechanics of the PF and tibiofemoral (TF) joints, there exists no realistic finite element (FE) model of the entire knee joint In this study and as a continuation of our earlier works on the TF joint , we aimed to develop a novel 3-D finite element model of the entire knee joint incorporating the TF + PF joints yielding a complex model that has not yet been reported. Apart from the investigation of the joint mechanics in flexion (0°-90°) under various quadriceps forces, this study also aimed to examine the influence on results of the tibial constraints under quadriceps forces. It is hypothetized that the manner in which the tibia is restrained in flexion could influence joint biomechanics.
机译：normal股（PF）关节通常是由于正常追踪障碍，不稳定和过度压力综合症引起的膝前疼痛的来源。整个膝关节功能性生物力学的研究对于研究股四头肌/ string绳肌激活水平，完整韧带，交叉韧带受伤的关节和交叉韧带之间的相互作用，交叉韧带的力以及运动学之间的相互作用至关重要。这些知识对于预防和治疗程序至关重要。尽管对PF和胫股（TF）关节的生物力学进行了许多实验研究，但不存在整个膝关节的现实有限元（FE）模型。在本研究中，作为我们在TF关节早期工作的延续，我们旨在结合TF + PF关节，开发出整个膝关节的新型3-D有限元模型，从而产生尚未报告的复杂模型。除了研究在各种股四头肌力量下屈曲（0°-90°）的关节力学外，本研究还旨在研究股四头肌力量对胫骨约束结果的影响。据推测，限制胫骨屈曲的方式可能会影响关节的生物力学。

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