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The Femoroacetabular Impingement May Be Affected By Changing the Centre Of Rotation

机译：通过改变旋转中心来影响股骨旁的撞击

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The Femoroacetabular Impingement (FAI) causes pain and reduction of range of motion. FAI also causes abnormal contact stress and potential joint damage around hip. We investigated the kinematics of a hip joint when a FAI occurs. In this study we put forward the following hypotheses: Does chang ing the kinematics of motion affect the contact surface/forces? Does changing the kinematics of motion eliminate the need of cutting the bump? The study uses a finite element (FE) model of the hip joint to analyse the biomechanics of the hip at the impingement zone. The model was initially analysed using the original kinematics of the joint. The kinematics was then changed with a stepwise changing the centre of rotation to evaluate its effect on the FAI contact zone. The study demonstrated that the joint motions such as flexion, adduction and internal rotation changed with variation of the gap between the femur and the acetabulum.
机译：股骨旁撞击（FAI）引起疼痛和减少运动范围。 FAI还会导致臀部周围的接触应力和潜在的关节损伤。当FAI发生时，我们调查了髋关节的运动学。在这项研究中，我们提出了以下假设：使运动的运动学是否会影响接触表面/力量？改变运动的运动学是否消除了切割凹凸的需要？该研究使用髋关节的有限元（Fe）模型来分析冲击区的臀部的生物力学。最初使用关节的原始运动学分析该模型。然后通过逐步改变旋转中心来改变运动学，以评估其对FAI接触区域的影响。该研究表明，屈曲，内部旋转等关节运动改变了股骨和髋臼之间的间隙的变化。

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