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基于性别的差异和非对称的部动力学在单边延伸从深的部曲期间的性别差异和不对称

Camille C Johnson¹, Ethan Ruh^1,2, Naomi Frankston^1,2

¹Department of Orthopaedic Surgery, University of Pittsburgh, 3820 South Water Street, Pittsburgh, PA 15203.

Journal of biomechanical engineering

|September 12, 2024

概括

与男性相比,女性在升级过程中表现出更大的部绑架和中间翻译. 这项研究强调了自然的部运动不对称性,这对于理解手术后或康复后的差异至关重要.

科学领域:

生物力学生物力学
整形外科整形外科整形外科
人类运动科学科学人类运动科学

背景情况:

了解关节运动学对于诊断和治疗关节疾病至关重要.
之前的研究已经注意到关节整形术 (THA) 后部的动力学差异.
在健康的部运动中,自然的,侧向侧的和基于性别的变化的程度仍然不太了解.

研究的目的:

为了量化基于性别和侧对侧差异的部动力学在一个单边的步骤上升运动从深度曲.
为了确定健康的部运动不对称性的基线数据.
为解释临床人群中的动力学数据提供背景,例如THA后患者.

主要方法:

十二名健康的年轻成年人 (8名男性,4名女性) 进行了一次单方面升级任务.
同步双平面放射学以每秒50的速度捕捉部运动.
一种经过验证的基于体积模型的跟踪技术,使用CT衍生骨模型来确定股骨和骨盆的位置.

主要成果:

在步进过程中,女性表现出明显更大的部绑架 (10.2°更多) 和中间翻译 (0.2 mm更多) 比男性更大 (p < 0.001).
在左和右部之间观察到相当大的内在不对称性,内部旋转高达14.1°,翻译高达1.3mm.
这些发现表明,在无症状人群中,部动力学存在相当大的自然变化.

结论:

在部动力学中存在显著的基于性别的差异,这些差异发生在从深度曲的单边上升过程中.
无症状的个体表现出明显的侧向侧部运动不对称性.
在临床种群中观察到的动力学差异,如THA后,可能属于健康部中发现的自然变异范围.

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