Methods An expandable silastic implant was placed under the forehead tissue and water was injected into it.The forehead skin tissue was expanded during five week.

• 方法在前额部的软组织下放入软组织扩张器,经过5周的时间将皮肤软组织扩张,在其上设计以一侧滑车上动脉为蒂的三叶状的前额皮瓣,向下反转重建外鼻。