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作者报告1952—1968年先天性耳畸形44例,畸形耳64耳。手术治疗51耳,41耳术后听力皆有15—50dB改善(85.5％),仅7耳听力无进步。耳部畸形改善听力的手术主要有两个问题,即耳道成形和中耳功能重建。为保证建成良好的外耳道,作者介绍在畸形小耳后方作“Z”形切口,构成带蒂舌状皮片,置于耳道上壁及鼓膜移植物上。耳道其余创面,可用游离皮片敷盖。此带蒂皮片可防止耳道狭窄。其根宽和蒂长之比约1:3或1:4,皆可成活。19例用此带蒂舌形皮片,除一例生长瘢痕疙瘩外,无一例须再次手术者。既往单用全厚或中厚游离皮片移植的22例中,有6例再度闭锁。
The authors report 44 cases of congenital ear malformation in 1952-1968, and 64 cases of malformed ear. Surgical treatment of 51 ears, 41 ears were 15-50dB after hearing improvement (85.5%), only 7 ears without improvement in hearing. Ear deformity to improve the hearing of surgery there are two main problems, that is, ear canal reconstruction and middle ear reconstruction. In order to ensure the establishment of a good external auditory canal, the author introduced in the deformity of the small ears for the “Z” shaped incision to form the tongue-shaped ventral skin graft, placed in the ear canal wall and tympanic membrane graft. The other ear canal wounds, available free skin cover. This pedicle piece prevents the ear canal from becoming narrow. Its root width and pedicle length ratio of about 1: 3 or 1: 4, can survive. 19 cases with this pedicled tongue-shaped skin piece, in addition to a case of keloid growth, no case to be re-surgery. In the past, only 22 cases of full-thickness or medium-thickness free skin grafts were re-locked.