作者在为１例拇指缺失的患者行甲皮瓣游离移植再造拇指时，发现短伸肌有变异，现报道如下：患者，男，２２岁。因左手拇指外伤性缺失，于１９９８年６月３日急诊行吻合血管的左侧甲皮瓣移植再造拇指术。术中见短伸肌位于足背动脉的深层，自外上向内下止于趾近节... When a thumb-free flap was made in 1 patient with thumb loss and the thumb was replanted, it was found that there was a variation in the short extensor muscle. The report is as follows: Patient, male, 22 years old. Due to the traumatic left thumb loss, on June 3, 1998, the emergency line was performed with the flap of the left flank flap graft for thumb reconstruction. See intraoperative  short extensor dorsalis artery located in the deep, from outside to inside down to the toe near section ...