关节中心估计方法和依赖部,大腿和膝盖角度的比较之间的协议
C Roger James1, Lee T Atkins1, Karthick Natesan1
1Center for Rehabilitation Research, Texas Tech University Health Sciences Center, Lubbock, TX, USA.
Journal of applied biomechanics
|May 30, 2025
概括
估计关节中心 (HJC) 的位置会影响关节角度测量. 不同的HJC方法显著改变大腿的角度,特别是在斜腰平面,需要仔细的方法选择.
科学领域:
- 生物力学 生物力学
- 运动学 运动学
- 整形外科 整形外科 整形外科
背景情况:
- 精确的关节中心 (HJC) 位置对于生物力学分析和下肢运动的临床解释至关重要.
- 在HJC估计方法的变化可能导致计算的关节角度和随后的临床评估的差异.
研究的目的:
- 在六种常见的HJC估计方法中评估协议.
- 通过这些方法来比较部,大腿和膝关节的角度.
- 为了研究HJC位置精度和大腿角变化之间的关系.
主要方法:
- 使用骨盆标记数据应用了六种流行的HJC估计技术.
- 哈林顿的方法作为比较的参考标准.
- 协议分析的极限和推断统计数据被用来在站立时比较角度.
主要成果:
- 贝尔的方法与哈林顿的方法达成了最高的一致性 (HJC偏差:0-11毫米;部角度差异: -0.2°到0.1°).
- 沃恩的方法显示出最少的协议 (HJC偏差:-5至41毫米;部角度差异: -0.5°至 -5.3°).
- 在HJC坐标 (AP,ML) 中的差异显著预测了横向,正面和横向平面 (R2范围:0.54-0.99) 的大腿角变化.
结论:
- 选择HJC估计方法显著影响大腿的计算角度,特别是在角平面.
- 在HJC位置的微小变化可以导致关节角度测量的实质性差异.
- 研究人员和临床医生应保持谨慎,并意识到HJC估计方法对生物力学数据的潜在影响.
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