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作者等报告1946～1971年间因慢性中耳炎而进行手术的574名患者(男315,女259)627耳手术前后听力的对比结果。手术方法都采取Palva的关闭术式,包括彻底的乳突凿开术并用肌骨膜瓣填充乳突腔,部分用转移颞肌瓣或明胶海绵抗生素、自家骨屑等填塞。鼓室粘膜保留者232耳,去除者395耳。听骨链的重建分六类:(1)听骨链完整者116例,其中82例保留鼓室内粘膜,34例除去鼓室内粘膜。(2)镫骨存在者,用自家或同种异体或乳突皮质碎骨架于镫骨头上共139例,65例保留鼓室内粘膜,74例去除。(3)镫骨存在,用不锈钢丝或聚乙烯小柱置于镫骨头
The authors compared the hearing of 574 patients (male 315, female 259) with 627 ears treated before and after surgery for chronic otitis media between 1946 and 1971. Surgical procedures are based on Palva’s closure procedures, which include complete mastoidotomy and filling of the mastoid cavity with a flap of the palate, partially with a transfer of the temporal muscle flap or gelatin sponge antibiotics, and filling of their own bone chips. 232 cases of tympanic mucosa retainers, 395 ears removed. Reconstruction of the ossicular chain divided into six categories: (1) 116 cases of complete ossicular chain, of which 82 cases retained the tympanic mucosa, 34 cases removed the tympanic mucosa. (2) In the presence of stapes, there were 139 cases of tarsal bones in their own or allogeneic or mastoid cortex, 65 cases of tympanic mucosa retained, and 74 cases removed. (3) stapes exist, with stainless steel wire or polyethylene column placed in the tarsal bones