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使用统计形状建模的慢性脚不稳定性和足类型的形态相似性

E Renae Lapins^1,2, Alayna Fendler³, Scott LaTulip⁴

¹Department of Biomedical Engineering, University of Utah, Salt Lake City, Utah, USA.

Journal of orthopaedic research : official publication of the Orthopaedic Research Society

|December 31, 2025

概括

慢性脚不稳定性 (CAI) 与足形态有关,这表明骨对齐有助于经常性脚扭伤. 在软组织松的同时解决脚的对齐可能会改善CAI患者的外科治疗结果.

科学领域:

整形外科整形外科整形外科
生物力学生物力学
放射学放射学是一门学科.

背景情况:

慢性脚不稳定性 (CAI) 影响高达40%的人在脚扭伤后.
脚和脚的微妙形态差异可能会使个体容易出现反复的不稳定.
统计形状建模 (SSM) 和高级成像技术为这些形态变异提供了洞察力.

研究的目的:

调查是否脚和脚形态,特别是后脚对齐和洞穴特征,有助于对CAI的结构性倾向.
使用SSM比较CAI患者的形态,洞脚类型和直脚类型的患者.

主要方法:

一个14个骨头的SSM是由80个个体的负载CT扫描 (23CAI,29洞穴,28直肠) 构建的.
分析了包括Meary角度 (MA),后脚脚对齐 (HAA) 和脚倾斜度在内的放射测量.
主要成分分析和Hotelling的T平方测试被用来比较群体之间的形态差异.

主要成果:

门高度 (Mode 1) 从直肠组显著区分了CAI和洞穴组.
在CAI和cavus组之间发现了最小的形态差异,Mode 5显示轻微分离.
与直肠组相比,CAI患者表现出更高的MA和varus HAA,与足形态一致,与直肠组相比.

结论:

患有CAI的个体表现出状的脚形态,这表明骨对齐是导致经常性脚不稳定的因素.
脚的对齐在CAI的发展和持续中发挥着重要作用.
对CAI的外科干预可能从解决骨变形和软组织松来改善稳定性中获益.

关键词:

慢性脚不稳定脚不稳定脚类型脚类型这就是pes cavus.统计形状建模的统计形状建模轴承式计算机断层扫描 (weightbearing computed tomography) 是一种计算机断层扫描.

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