在生理负荷期间使用动态关节空间来客观地测量部稳定性
Edward Godbold1, Connor Luck1, Camille Johnson1
1Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.
概括
这项研究为运动期间的关节空间建立了参考标准,发现步态揭示了关节稳定性的变化比坐更多. 这种动态的关节空间测量可以帮助诊断关节疾病.
科学领域:
- 生物力学 生物力学
- 整形外科 整形外科 整形外科
- 医疗成像医学成像
背景情况:
- 在功能负载期间客观测量部稳定性对于诊断和治疗至关重要.
- 现有的方法缺乏对关节空间 (HJS) 的客观动态评估.
- 健康的年轻人为稳定的部生物力学提供了基线.
研究的目的:
- 开发使用动态最小关节空间 (HJS) 的稳定部的参考测量.
- 分析像行走和坐等功能活动期间的HJS变化.
- 确定HJS变异性和部病理的潜在机制的预测因素.
主要方法:
- 收集了24名健康的年轻成年人在跑步机上行走和坐时的同步双平面放射图.
- 从CT扫描中创建了特定对象的股骨和骨盆模型.
- 使用基于体积模型的跟踪来确定骨运动和计算动态HJS.
主要成果:
- 与其他区域相比,步行过程中的动态HJS在前下部和后上部区域显示出明显更大的范围.
- 在坐期间,在辐射区域中没有观察到最小HJS的显著差异.
- 在步行过程中 Femur 头部的转换是 HJS 范围的更强的预测因素,而不是形态变化.
结论:
- 步态分析提供了一个更敏感的衡量动态部稳定性使用最小的HJS比坐.
- 在步行过程中,前下至后上大腿骨的活塞可能会导致部病理.
- 这种动态的HJS测量为评估部稳定性和指导临床决策提供了一种新的方法.
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