Machino M, Hattori Y, Ueno N
Department of Otolaryngology, Nippon Medical School, Tokyo.
Nihon Jibiinkoka Gakkai Kaiho. 1994 Jan;97(1):28-34. doi: 10.3950/jibiinkoka.97.28.
Meatoplasty is designed to create a lasting external auditory canal and provide improvement in hearing acuity. In three patients with congenital atresia of the external auditory canal not requiring otoplasty, we carried out meatoplasty using an island pedicle flap obtained from the postauricular region. The island pedicle flap was made into a tubed pedicle when sutured with the epidermis facing inward, which was then made into a blind tube pedicle flap when sutured to a free skin graft. The external auditory canal was completed when the blind tubed pedicle flap was inserted into a newly created external auditory canal. Since the operation, two of the three patients have benefited from remarkable improvement in hearing acuity, and all three patients have been free of atresia in the newly created auditory canal. This procedure has the following major advantages: the island pedicle flap is nourished by the posterior auricular artery; the procedure provides an island flap wide enough to cover the newly created auditory canal; and the operation can be performed in a one-stage procedure.
外耳道成形术旨在创建一个持久的外耳道并提高听力敏锐度。在3例不需要耳廓成形术的先天性外耳道闭锁患者中，我们使用从耳后区域获取的岛状带蒂皮瓣进行了外耳道成形术。当表皮向内缝合时，岛状带蒂皮瓣被制成管状蒂，然后在与游离皮片缝合时制成盲管状蒂皮瓣。当将盲管状蒂皮瓣插入新创建的外耳道时，外耳道即完成。自手术以来，3例患者中有2例听力敏锐度得到显著改善，并且所有3例患者新创建的耳道均未出现闭锁。该手术具有以下主要优点：岛状带蒂皮瓣由耳后动脉供血；该手术提供了足够宽的岛状皮瓣以覆盖新创建的外耳道；并且该手术可在一期手术中完成。
