This article aims to evaluate the usefulness of ultrasonography for the measurement of thenar muscles in carpal tunnel syndrome (CTS). A total of 85 patients with CTS who had a carpal tunnel release procedure were included in this study. The transducer was applied onto the palmar surface of the hand perpendicularly to the longitudinal axis of the first metacarpal bone. Thenar atrophy was evaluated visually and classified using the visual grading scale. A nerve conduction test was performed and classified according to the electrophysiological severity scale. This technique is more precise than visual evaluation because it is a quantitative assessment.

中文翻译：

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超声检查腕管综合征大鱼际肌的术前评估。

本文旨在评估超声检查测量腕管综合征 (CTS) 鱼际肌的有效性。本研究共纳入 85 名接受腕管松解术的 CTS 患者。将换能器垂直于第一掌骨的纵轴施加到手的手掌表面上。目视评估鱼际萎缩并使用视觉分级量表进行分类。进行神经传导测试并根据电生理严重程度等级进行分类。这种技术比视觉评估更精确，因为它是一种定量评估。