第Ⅱ掌背动脉蒂掌背岛状皮瓣

The second dorsal metacarpal artery flap with distant pivot point

介绍一种改良第Ⅱ掌背动脉皮瓣的新术式。方法 应用以第Ⅱ掌背动脉远端为蒂的旋转点的掌背岛状皮瓣，修复拇指创面７例，皮瓣面积１ｃｍ ×３ｃｍ～２ｃｍ ×４ｃｍ，血管蒂长６～７ｃｍ。结果 ７例皮瓣均成活，效果满意。结论当指背皮肤同时受损，而难以应用示、中指背岛状皮瓣时，可用此手部小型岛状皮瓣修复拇指创面。

Objective To introduce a modified flap pedicled with the second dorsal metacarpal artery. Method Seven thumb wounds were repaired with the second dorsal metacarpal artery flap. The size of the flap ranged from 1 cm×3cm to 2cm×4cm, and the length of the vascular pedicle was 6 to 7 cm. Result All flaps survived and the results were satisfactory. Conclusion This method is an option for repairing thumb defects when the local skin flap or island flap on the index and middle finger is not available.