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槌砧骨上鼓室固定又称外侧听骨固定,在传音机构修建术中常被忽视,使术后不能获得预期效果。本病可为单独病变存在,亦可合并鼓室其他病变,听力为传导性耳聋。我院于1981年～1986年2月施行鼓室成形术142例(142耳)中,槌砧骨上鼓室固定共12例(12耳)占8.5%。报告如下。临床资料12例槌砧骨上鼓室固定中,男性9例,女性3例,年龄均在25～45岁间,干耳时间在1～3年8例,4例在3年以上。右耳7例,左耳5例,鼓膜边缘性穿孔者10例、中等穿孔者2例。术前听力语频平均气导损失均在35dB以上,最高达55dB。全部病例弥补试验听力均无提高。显微手术探查所见:槌砧骨与上鼓室顶、侧和前壁粘连(纤维性固定及骨性固定)者共8例,其中2例在槌砧关节表面复盖有壳状钙化
The mallet anvil on the tympanic fixation, also known as lateral fixation of the bone, often neglected in the construction of acoustic mechanism, so that after surgery can not get the desired results. The disease may exist as a separate lesion may also be combined with other tympanic lesions, hearing-induced deafness. In our hospital from 1981 to February 1986 tympanoplasty performed 142 cases (142 ears), the mallet ankle fixed tympanic total of 12 cases (12 ears) accounted for 8.5%. The report is as follows. Clinical data 12 cases of mallet anvil on the tympanic fixation, 9 males and 3 females, aged 25 to 45 years old, dry ear time in 1 to 3 years in 8 cases, 4 cases in more than 3 years. There were 7 cases of right ear, 5 cases of left ear, 10 cases of marginal perforation of tympanic membrane and 2 cases of moderate perforation. Preoperative hearing average frequency of air conduction losses were above 35dB, up to 55dB. All cases make up the test hearing no improvement. Microsurgical exploration findings: mallet ankle and the tympanic top, side and anterior wall adhesions (fibrous fixation and osseous fixation) were a total of 8 cases, 2 cases of mallet anvil in the surface covered with shell calcification