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在逆向全肩关节整形手术中,肌肉激活与功能内部旋转的变异性

Line Ven¹, John D Zunker², Lennart Scheys³

¹Institute for Orthopaedic Research and Training (IORT), Department of Development and Regeneration, Faculty of Medicine, KU Leuven, Leuven, Belgium.

Journal of shoulder and elbow surgery

|September 3, 2025

概括

反向全肩关节整形手术 (rTSA) 患者的功能内部旋转 (fIR) 过度激活了肩部肌肉. 特定的肌肉激活模式和减少的旋转器强度对rTSA后的fIR结果产生影响.

科学领域:

骨科手术
生物力学
运动学

背景情况:

反向全肩关节整形 (rTSA) 的使用正在增加,但功能内部旋转 (fIR) 的结果有显著差异.
这种变化会影响患者在日常活动中的独立性.
之前的研究探讨了患者,运动和手术因素,但肌肉激活的作用尚不清楚.

研究的目的:

在rTSA之后,研究肌肉激活模式和功能内部旋转 (fIR) 变异性的关系.
确定与高和低fIR水平相关的特定肌肉激活模式.
探索运动恐惧症,内部旋转强度和fIR结果之间的相关性.

主要方法:

对16名rTSA患者的前性研究 (手术后至少1年).
通过最大同位素自愿收缩 (MIVC) 试验,测量了手向背运动中的肌肉激活 (表面和肌肉内).
用标记器捕获的动态;用手背测量到C7距离;用Tampa-17尺度评估动态恐惧症.

主要成果:

高fIR患者表现出较大的后骨,上/下骨和大骨激活.
发现fIR与大胸,中/下,前,小胸和背激活之间的负相关性.
运动恐惧与fIR的弱相关性 (R_s=- 0.32, p=0.025) 和内部旋转强度显示轻微的正相关性 (R_s=0.28, p=0.054).

结论:

在rTSA患者中,较低的fIR水平与特定的肩带肌肉过度激活有关.
背部三角形,上/下梯形和大三角形的肌肉激活模式对于达到高fIR至关重要.
增加的运动恐惧症和内部旋转器强度的降低与rTSA后的fIR结果较差有关.

关键词:

电肌图功能内部旋转运动恐惧症肌肉激活整体逆肩关节整形在肩膀上

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