Methods Preoperative design was in routine way.To cut the posterior auricular skin and subcutaneous tissue and then dissect and push away the cartilage film using the detacher.

• 方法先设计常规定点,切开耳后皮肤、皮下组织,剥离耳软骨膜并推向两侧,在软骨上做纵行平行切口,不切透耳软骨。