为避免耳内径路乳突手术后出现耳道缩窄 ,该作者设计一种“Z”形耳道成形术。按耳内切口切开耳道软骨段后壁皮肤 (见附图 bc线 ) ,并向前上完成耳轮脚前皮肤切口 ,自耳道后壁切口下端 C点向后上方切开耳甲腔皮肤 (cd线 )并切除皮下的椭圆形耳甲软骨 ,最后沿耳道后上壁交界处由 To avoid a constriction of the auditory canal after otitis media surgery, the author designed a “Z” type of otorhinoplasty. Cut ear canal cartilage segment wall (see line bc), and to complete the anterior incision of the skin incision on the ear, from the ear canal posterior wall incision at the bottom of the lower end of C point incision ear shell cavity (CD line) and remove the subcutaneous oval concha cartilage, and finally along the ear canal at the junction of the upper wall by