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将双重移植鼓膜修补术176例和在采用此法前的单纯颞筋膜移植鼓膜修补术107例,进行对比分析,全部病例术后观察1年6个月以上并于术后6个月做听力检查。手术方法:耳后切口。分离外耳道后壁,除去鼓膜穿孔边缘上皮,暴露中耳腔检查听骨链连接状况,将预先浸泡在生理盐水中的同种冻干硬膜(LHD)修整后置于残存鼓膜内侧面,使其一部分位于槌骨柄与鼓膜之间(内植法),再将筋膜置于LHD的外侧面(外植法),外耳道皮肤复位后无需缝
176 cases of double tympanic membrane repair and 107 cases of simple temporal fascia repair tympanic membrane repair before using this method were compared and analyzed. All the cases were observed for more than 6 months and 6 months after operation an examination. Surgical methods: ear incision. Separate the posterior wall of the external auditory canal, remove the marginal epithelium of perforation of the tympanic membrane and expose the middle ear cavity to check the connection of the ossicular chain. The lyophilized dura mater (LHD) presoaked in saline is trimmed and placed on the medial side of the residual tympanic membrane, Part of the mallet between the tympanic and tympanic membrane (implants), and then the fascia placed on the lateral surface of LHD (explantation), no need to sew the skin after the external auditory canal