오토바이사고 이후 발생한 근피신경 단독손상
A Case of Isolated Musculocutaneous Nerve Injury Following Motorcycle Accident
김유수, 이건재, 정선근,
소속 상세정보
김유수 ( Kim Yu-Soo )
서울대학교 의과대학 재활의학교실
이건재 ( Lee Kun-Jai )
강원대학교 의과대학 재활의학교실
정선근 ( Chung Sun-Gun )
서울대학교 의과대학 재활의학교실
KMID : 0860920050070020128
Abstract
Isolated paralysis of the musculocutaneous nerve, as reported in the literature, is uncommon and usually caused by direct traumas. Lesions not associated with direct traumas are rare and usually occur after repetitive high demand activities. This is a report of the musculocutaneous nerve injury following a single episode of overloading accompanied by a motorcycle accident without any fractures, dislocation or external traumas, which might have caused direct nerve injuries. The lesion in this case was thought to be below the coracobrachialis muscle, leaving the coracobrachialis muscle intact and involving the biceps, brachialis and lateral antecubital cutaneous nerve. On initial electromyographic examination at three months after the injury, the lesion was so severe that abundant abnormal spontaneous activities and no voluntary motor units were seen in the biceps brachii and brachialis muscles. At seven months since the onset of symptoms, the biceps muscle showed many abnormal spontaneous activities with only a single motor unit action potential recruited. We report a case of an isolated musculocutaneous nerve lesion not caused by a direct nerve insult, involving distal to the coracobrachialis, and showing severe axonotmesis, which has been reported rarely.
키워드
Isolated Musculocutaneous Nerve Injury;Electromyography;Motorcycle Accident
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