Methods According on the size of defects of lip-cheek,A interior chin myocutaneous flap with SMAS-platysma pedicel was designed to repair skin defect of lip-cheek.

• 方法根据口周皮肤及软组织的缺损面积,设计以SMAS-颈阔肌为蒂的颏下部横行肌皮瓣,经皮下隧道修复缺损。