鼓室乳突切除术保持完整的外耳道壁或联合进路鼓室成形术当今可看做是经典性单纯乳突凿开术的变型,而保留桥的鼓室乳突切除术(intact bridge tympanomastoidectomy,IBM)则可认为是当代的改良乳突根治术的变型,它保留了骨桥同时又用了现代的鼓室成形方法。作者们介绍了IBM手术,认为它兼收了保存开放腔和封闭腔乳突切除术的合理的内容,发展了鼓室成形技术。且能一期完成手术。此手术适用于中耳及乳突炎伴有胆脂瘤或肉芽组织病变的首次手术或以前做 Mantle Mastoid Resection Maintaining a complete external auditory canal wall or combined approach to tympanoplasty can now be considered as a variant of the classic simple mastoidectomy while intact bridge tympanomastoidectomy (IBM) Can be considered as a contemporary modification of modified radical mastectomy, which retains the bone bridge while using a modern tympanic method. The authors introduced IBM surgery and considered it compatible with the preservation of open cavity and closed mastoid excision, and developed tympanoplasty techniques. And can be a complete operation. This operation is suitable for the first surgery or middle ear and mastoiditis with cholesteatoma or granulation tissue lesions do