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作者们对32例慢性化脓性中耳炎患者中耳乳突根治术后,进行外耳道后壁的修复和乳突成形。患者年龄7～54岁。男14例,女18例。手术方法:首先于显微镜下仔细地清除中耳、乳突腔病变,然后用异体骨、软骨移植物充填乳突腔并作成外耳道后壁。异体移植物取自胎儿,于0.75%戊二醛液保存10天后,放入0.25%该液中6个月(经10天即可应用)。将其做成所需形状并穿2～3个直径3～4mm的小孔以利血管形成。用超声熔接法(时间5秒)固定于外耳道后壁缺损处,乳突腔用碎骨或软骨片充填。其上放带蒂肌瓣后,将外耳道皮片放回,敷料固定。术后观察1月至3年。29例鼓室炎症停止,
The authors performed the repair of the posterior wall of the external auditory canal and the mastoid process in 32 patients with chronic suppurative otitis media after radical mastectomy. Patients aged 7 to 54 years old. There were 14 males and 18 females. Surgical methods: First, carefully remove the middle ear, mastoid lesions under the microscope, and then use the allogeneic bone, cartilage graft filling the mastoid cavity and make the posterior wall of the external auditory meatus. The xenografts were taken from the fetus and placed in 0.25% of the solution for 6 months after 10 days of storage in a 0.75% glutaraldehyde solution (10 days of application). Make it into the desired shape and wear 2 ~ 3 holes 3 ~ 4mm in diameter to facilitate angiogenesis. Ultrasound fusion method (time 5 seconds) fixed to the posterior wall of the external auditory canal defect, mastoid cavity filled with bone or cartilage tablets. After putting the pedicle flap, put the external auditory meatal skin flap back, dressing fixed. Postoperative observation from January to 3 years. 29 cases of tympanitis stopped,