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目的 :消灭乳突根治术后遗留的开放乳突腔及外耳道后壁缺损。方法 :采用同种异体肋软骨对乳突根治术后 17耳行外耳道后壁重建及乳突腔充填 ,同时 期进行传音结构重建 ,其中部分听骨替换假体术式 8耳 ,全听骨替换假体术式 9耳。结果 :经 6个月～ 2年随访 ,全部病例重建外耳后壁接近正常生理结构。完全成功 14耳 ,部分成功 2耳 ,失败 1耳 ,术后 3个月鼓膜重新穿孔流脓。结论 :以同种异体肋软骨对乳突根治术后耳行外耳道后壁及听力重建术 ,是防止乳突腔感染 ,提高听力的较理想方法
OBJECTIVE: To eliminate the posterior wall defects of the open mastoid and external auditory canal after radical mastectomy. Methods: Allograft cartilage was used to repair posterior wall of external auditory canal and mastoid cavity in 17 ears after radical mastectomy. At the same time, acoustic structure reconstruction was performed. Some of the 8 ears Replace prosthesis type 9 ears. Results: After 6 months to 2 years of follow-up, the posterior wall of the auricular reconstruction of all cases was close to the normal physiological structure. 14 ears were completely successful, 2 ears were partially successful, 1 ear failed, and the perforation was emptied again 3 months after operation. Conclusion: Allograft costal cartilage is an ideal method to prevent mastoid infection and improve hearing after posterior wall of auditory canal and auditory reconstruction after mastotomy