鼓膜穿孔修复的成败因素可分为乳突因素及丰乳突因素。感染是失败的主要原因,它可为乳突的隐蔽病变或外部污染所致。非乳突的失败因素有身体衰弱、技术过失及最重要的咽鼓管功能不全;乳突因素包括乳突气化情况及是否存在炎症等。乳突在鼓膜穿孔成形的作用有争论,本文结合48例鼓膜成形术同时行单纯乳突切除术结果进行讨论。术前后摄Schüller位平片,8例术后随机作CT扫描,结果如下:乳突对侧气化好者成功大,对侧小乳突者差,71%失败为双侧小乳突,大乳突成功率较高;乳突非炎症组高于炎症 The success or failure factors of tympanic membrane perforation repair can be divided into mastoid factors and mastoid factors. Infection is the primary cause of failure, which can be caused by hidden lesions or external contamination of the mastoid. Failure factors of non-mastoid body weakness, technical errors and the most important eustachian tube dysfunction; mastoid factors include mastoid gasification and the existence of inflammation. The role of mastoid in perforation of the tympanic membrane is controversial. In this paper, 48 cases of tympanoplasty at the same time simple mastoidctomy results are discussed. Schüller plain radiography was performed before and after surgery. CT scan was performed in 8 patients after surgery. The results were as follows: The laparotomy on the contralateral gastrocnemius was successful with poor contralateral papilloma, and 71% failed to bilateral minor papilla, Big mastoid success rate higher; mastoid non-inflammatory group than inflammation