本文报道自1980年以来,将异体硬脑膜用于中耳乳突根治术中收到较好效果。使用时应注意;①在手术显微镜下将中耳乳突根治术腔完成后,用骨钻将乳突腔磨平,再用生理盐水将术腔冲洗干净,勿在术腔中遗留胆脂瘤上皮和碎骨片。②将在冰箱内存放的硬脑膜取出用生理盐水反复冲洗后,根据术腔的大小剪成两块,一块大的铺在乳突腔内,一块小的做鼓膜移植 This article reports that since 1980, allogeneic dura mater for the middle ear mastoidectomy received good results. Use should pay attention to; ① under the microscope under the operation of the middle ear mastoidectomy after the completion of the cavity, the mastoid bone will be ground with bone drilling, and then rinse the normal saline cavity, do not left in the cavity of cholesteatoma Epithelial and bone fragments. ② will be stored in the refrigerator dura removed repeatedly washed with saline, according to the size of the cavity cut into two pieces, a large shop in the mastoid cavity, a small tympanic membrane transplantation