在前肩部不稳定的肩部肌肉体积和计算机断层扫描密度的截面测量
Keita Nagawa1, Yuki Hara2, Hirokazu Shimizu2
1Department of Radiology, Saitama Medical University, 38 Morohongou, Moroyama-machi, Iruma-gun, Saitama, Japan. ldeso5rbdlayids9taiy@gmail.com.
Scientific reports
|November 10, 2024
概括
肩部不稳定包括前后肌肉之间的不平衡. 一种3DCT扫描方法揭示了前肩不稳定患者的肌肉失衡,这表明了新的评估方法.
科学领域:
- 整形外科 整形外科 整形外科
- 放射学 放射学是一门学科.
- 生物机械分析分析
背景情况:
- 前肩部不稳定 (ASI) 可能源于慢性肌肉失衡.
- 前面的 subscapularis (Ssc) 和后面的 infraspinatus/teres minor (Isp+TM) 是关键的.
- 量化这种肌肉平衡对于理解ASI至关重要.
研究的目的:
- 评估Ssc和Isp+TM之间的肌肉体积比率 (VR) 和CT密度比率 (CT-DR).
- 评估3D截面方法用于测量这种肌肉平衡的实用性.
- 为了比较ASI患者的肌肉平衡与对照组 (关节骨骨折[CF]).
主要方法:
- 分析了来自19个非病理 (CF) 和17个ASI肩膀的计算机断层扫描 (CT) 扫描.
- 重建了Ssc和Isp+TM肌肉的3D模型.
- 模型在特定的平面 (Y视图,2.5厘米,5厘米中间) 中被切割,以测量VR和CT-DR.
主要成果:
- 3D截面方法的结果与CF组的整个肌肉测量结果相似.
- 在ASI组中,VRSsc/Isp+TM显著更高,表明前部肌肉体积更大.
- 在ASI组中,CT-DRSsc/Isp+TM较低,表明后部肌肉密度降低.
结论:
- 在ASI患者中,肩膀肌肉体积和密度存在显著的不平衡.
- 3D截面测量方法是评估这种肌肉不平衡的可行方法.
- 这种技术有可能用于评估前肩部不稳定的肌肉平衡.
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