Results The flap survived in 19 cases and had partial necrosis in 2 cases becase of appear vein circulation crisis, which to adopt flap decompress small vein bloodletting was saving.

• 结果。19例皮瓣顺利成活,2例出现静脉危象,皮缘部分坏死,经拆线、换药后伤口愈合。