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鼓室成形术由于乳突腔与外耳道宽敞相通,常引起痂皮形成或皮炎等后遗症,过去曾有应用带蒂肌肉、自家骨片、脂肪等充填乳突腔的方法,但不适用于外耳道骨壁或皮肤缺损之再次手术病例。著者应用脱蛋白幼牛骨(Kiel bone)及筋膜给骨性外耳道后壁及皮肤缺损的50例患者做了人工骨桥及外耳道成形术,获一定效果。耳后切口,手术方法与一股鼓室成形相同,用筋膜做人工鼓膜,并用脱蛋白幼牛骨做人工骨桥及充填乳突腔。手术可以一次完成。如有胆脂瘤、胆固醇肉芽肿等病变存在或骨质病变严重者,应先将病灶去除,术腔充填抗菌素、激素、明胶海
Tympanoplasty because the mastoid cavity and external auditory canal wide communication, often cause scab or dermatitis and other sequelae, the past had the use of pedicled muscles, their own bone, fat and other methods of filling the mastoid cavity, but not for the external auditory canal wall Or skin defect re-operation cases. The authors performed artificial bone bridge and external auditory canal angioplasty in 50 patients with dermablastic Kiel bone and fascia to the posterior wall and skin defect of the bony external auditory canal with some results. Ear incision, surgical methods and a tympanic membrane forming the same, with the fascia artificial tympanic membrane, and the use of deproteinized bovine bone artificial bone bridge and filling the mastoid cavity. Surgery can be done in one go. If cholesteatoma, cholesterol granuloma and other lesions exist or serious bone disease, the lesion should be removed first, the cavity filled with antibiotics, hormones, gelatin sea