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摘要


前骨間神經麻痺並不常見,臨床表徵為屈拇長肌,至食指和中指的深指屈肌和旋前方肌無力,導致拇指、食指、中指之遠端無法彎曲但病患之皮膚感覺正常。病因有多種,常發生於骨間前神經在前臂接近正中神經解剖部位受到骨間膜、肌腱,或肌肉的局部陷壓所致。病患通常是重複使用手肘及前臂活動的工作者。臨床症狀一般先出現局部疼痛,肌肉無力麻痺隨之而來。可藉肌電波及神經傳導分析來協助診斷及追蹤。本文報告一位35歲之女性工作者,因持續手肘及前臂之搬運動作,出現前臂部位疼痛及後續左手拇指、食指之握捏動作無力。初步診斷是神經炎,經藥物治療及手臂休息後病患臨床症狀未見恢復改善。手術探查後發現前骨間神經有經壓迫後之沾黏,同時將病灶部位予以修復減壓。病患在術後追3個月內臨床症狀逐漸改善,1年後拇指、食指之握力與捏力已經完全恢復。

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並列摘要


Anterior interosseous nerve (AION) palsy is a rare, purely motor mononeuropathy that leads to weakness of the flexor pollicis longus (FPL) and the flexor digitorum profundus (FDP) of the second digit. The typical symptoms are the inability to flex the terminal phalanges of the thumb and index finger. We described a case of anterior interosseous nerve palsy with a characteristic abnormal pinch. The duration of symptoms prior to diagnosis was five months. The conservative treatments were of four months' duration with little improvement. The lesion was identified at surgery, and the recovery was complete within one year of surgery.

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