In all these 21 patients,the lateral wall of attic was reconstructed with the cartilage of tragus. The perichondrium of the cartilage was used to repair the perforation in the non-vibrans membrane.

• 21例患者均用带软骨膜的耳屏软骨重建上鼓室外侧壁,其软骨膜修复穿孔的鼓膜松弛部。