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腰椎的细分不对称性和多平面运动:对脊柱病理的尸体洞察力

Asghar Rezaei¹, Alexander Hooke², Babak Dashtdar¹

¹Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, MN, USA.

Journal of the mechanical behavior of biomedical materials

|October 17, 2025

概括

在腰椎运动和扭矩中发现了细分不对称性,即使在对称输入的情况下也是如此. 这些隐藏的变化,在全球分析中经常被忽视,对于理解腰部疼痛至关重要.

科学领域:

生物力学生物力学
脊椎解剖学脊椎解剖学
整形外科整形外科整形外科

背景情况:

腰椎对于运动和负载分配至关重要.
全球脊柱对称性经常被假定,但细分不对称性可能会导致腰部疼痛 (LBP).
在全球运动分析中,可以掩盖细分不对称性.

研究的目的:

在细分水平上调查腰椎多平面运动行为和扭矩不对称性.
识别可能被全球评估遗漏的细分不对称性.
探索细分运动,扭矩和底层脊柱状况之间的关系.

主要方法:

利用一种新的实验设置,使用6度自由度的机器人系统和对尸体腰椎脊柱的光学计量.
应用了控制的曲-延伸,侧向曲和轴向旋转,使用对称的运动输入.
在冠状和轴面的定量分段运动范围 (ROM) 和扭矩不对称性.

主要成果:

尽管在几个标本中具有对称的运动输入,但观察到显著的扭矩不对称性 (>15%).
细分ROM不对称 (>40%) 在大多数脊椎中普遍存在,并且在运动平面上有所不同.
一些脊柱甚至在整体扭矩对称的情况下也显示出细分不对称性,这表明总体评估的局限性.

结论:

分段级分析对于理解腰椎脊柱生物力学至关重要.
隐藏的细分不对称性对诊断和治疗LBP有潜在的临床影响.
脊柱病态和对齐可能会影响运动和扭矩的特定细分不对称性.

关键词:

生物机器人系统生物机器人系统光学计量学是指光学计量学.运动范围的范围.相对运动的相对运动.脊柱运动是指脊柱的运动.

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