在腕管松解术中发现大鱼际肌运动支的异常起源。
Anomalous origin of the thenar motor branch encountered during carpal tunnel release.
作者信息
Rajagopal Megan, Dunbar Emily, Paruchuri Satya Siri, Graham Robert Scott
机构信息
Department of Neurosurgery, Virginia Commonwealth University Health System, Richmond, United States.
出版信息
Surg Neurol Int. 2025 May 16;16:180. doi: 10.25259/SNI_3_2025. eCollection 2025.
BACKGROUND
This illustrative case demonstrates the thenar motor branch (TMB) arising from the median nerve proper through the palmaris fascia, visualized during a carpal tunnel release procedure.
CASE DESCRIPTION
A 64-year-old with a history of hypertension and diabetes presents to the clinic with 1 year of neck pain, upper extremity numbness and tingling, wasting of hand muscles, and weakness of the left hand. Electromyography confirmed cubital tunnel syndrome bilaterally and right carpal tunnel syndrome. The patient underwent right cubital and carpal tunnel decompressions.
CONCLUSION
Awareness of TMB anomalies and careful identification during surgery can prevent iatrogenic injury and further complications.
背景
本病例说明在腕管松解手术过程中，正中神经发出的鱼际肌运动支（TMB）穿过掌腱膜，清晰可见。
病例描述
一名64岁患者，有高血压和糖尿病病史，因颈部疼痛、上肢麻木和刺痛、手部肌肉萎缩及左手无力1年就诊。肌电图证实双侧肘管综合征及右侧腕管综合征。患者接受了右侧肘管和腕管减压术。
结论
了解TMB异常情况并在手术中仔细识别，可预防医源性损伤及进一步并发症。
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