Objective To provide anatomical basis for reconstruction thumb of free bifoltaed bone flap pedicled with the dorsal carpal branch of ulnar artery.

目的为应用尺动脉腕背支骨皮瓣再造拇指提供解剖学理论基础。

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A point on the elbow where the ulnar nerve runs close to the surface and produces a sharp tingling sensation if knocked against the bone.

肘部的一个突起，此处尺骨神经接近表皮层，一碰到骨头就会产生刺痛感。

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Results 18 cases were followed up for 6 to 24 months. All fractures gained bone union without complications such as injury of ulnar nerve. No fixator breakage or loosening was found.

结果18例患者均获随访，时间6 ~ 24个月，无一例出现骨折不愈合和尺神经损伤等并发症，无钢板螺钉松动断裂的发生。

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