在行走过程中,体和体形态对体下运动学的影响
Tetsuya Yamamoto1,2, Paige Paulus1, Joshua C Setliff1
1Biodynamics Lab, University of Pittsburgh, Pittsburgh, PA, USA.
Foot & ankle international
|March 16, 2024
概括
步行时的关节运动受到关节和骨骨形状的影响. 具体来说,关节后面形态显著影响关节下部关节动力学,为后脚稳定提供了洞察力.
科学领域:
- 整形外科 整形外科 整形外科
- 生物力学 生物力学
- 人体解剖学 解剖学 解剖学
背景情况:
- 尸体研究表明,骨形态影响关节的稳定性和动力学.
- 没有先前的研究将下关节骨形态与其在步行过程中的动力学相关联.
- 了解下关节机制对于诊断和治疗后脚疾病至关重要.
研究的目的:
- 为了研究 talar 和 calcaneal 形态在行走过程中对 subtalar 动力学的影响.
- 为了建立特定的骨形状特征和行走过程中的关节运动之间的相关性.
主要方法:
- 在行走过程中,对40个脚 (20名健康人) 进行了同步双平面射线影像.
- 基于体积测量模型的跟踪分析了立场阶段的骨和骨运动.
- 统计形状建模评估了舌头和脚形态,并使用皮尔森相关系数进行分析.
主要成果:
- 一个较浅的塔拉尔后面面与增加的背部屈曲,反转和亚塔拉尔关节的内部旋转相关.
- 泰勒后面面的较高曲率与更大的反转和反转范围有关.
- 中部脚面的较轻微的斜率与增加的脚下逆转相关.
结论:
- 塔拉后面面体形态是行走过程中多平面亚塔拉关节动力学的主要决定因素.
- 这些发现增强了对后脚形状功能关系的理解.
- 这种知识可以帮助识别底部的不稳定性,并优化外科植入物设计.
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