Three-dimensional kinematics and kinetics of getting into and out of a car in patients after total hip arthroplasty
Three-dimensional kinematics and kinetics of getting into and out of a car in patients after total hip arthroplasty
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DOI：
10.1016/j.gaitpost.2022.10.003
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发表时间：
2022-10-18
期刊：
影响因子：
2.4
通讯作者：
Nakashima, Yasuharu
中科院分区：
文献类型：
--
作者：
Harada, Tetsunari;Hamai, Satoshi;Nakashima, Yasuharu
背景：在现代社会中，汽车使用是最重要的日常生活活动之一。然而，全髋关节置换术（THA）患者进出汽车的三维（3D）力学尚未研究。研究问题：本研究旨在阐明单侧THA患者进出汽车时的髋关节运动学和动力学。方法：3D运动和地面反作用力数据收集40个单侧初次全髋关节置换术和30个对照参与者使用的动作捕捉进入和离开一辆汽车。标准化关节屈光度用于确定单个关节的贡献，并通过将每个关节的屈光度除以总下肢屈光度来计算。这些运动学和动力学数据之间进行了比较单侧THA和对照participator.Results：当进入汽车使用的手术侧作为枢轴肢体，峰值屈曲，外展角，和规范化的权力的枢轴髋关节显着降低，和规范化的权力对侧踝关节显着较高。当离开汽车时，枢轴髋关节的峰值屈曲和外展角显著降低，标准化对侧髋关节动力显著升高。在以对侧为支点进入和离开汽车时，运动范围（RoM）和标准化关节功率没有显著差异。意义：恢复手术髋关节的RoM和肌肉力量，并采用正常侧作为枢轴肢体，可以使进出汽车的运动更适当地平衡，这将导致安全的移动，帮助社会参与，提高生活质量。
Background: In modern society, car usage is one of the most important activities of daily living. However, the three-dimensional (3D) mechanics of getting into and out of a car in total hip arthroplasty (THA) patients have not been studied.Research question: This study aimed to elucidate the hip kinematics and kinetics of unilateral THA patients while getting into and out of a car.Methods: 3D motion and ground reaction force data were collected for 40 unilateral primary THA and 30 control participants using motion capture of getting into and out of a car. Normalized joint power was used to determine the individual joint contribution and was calculated by dividing the power of each joint by the total lower-extremity power. These kinematic and kinetic data were compared between unilateral THA and control participants.Results: When getting into the car using the surgical side as the pivot limb, the peak flexion, abduction angle, and normalized power of the pivot hip were significantly lower, and the normalized power of the contralateral ankle was significantly higher. The peak flexion and abduction angle of the pivot hip were significantly lower, and normalized contralateral hip power was significantly higher when getting out of the car. In getting into and out of the car using the contralateral side as the pivot limb, there was no significant difference in the range of motion (RoM) and normalized joint power.Significance: The restoration of RoM and muscle strength in the surgical hip joint and adopting the normal side as the pivot limb may allow for a more appropriate balance in motion of getting into and out of a car, which will lead to safe mobility, assist in social participation, and improved quality of life.