Lavy J, Fagan P
Department of Otology/Neuro-Otology, St Vincent's Hospital, Sydney, Australia.
J Laryngol Otol. 2001 Apr;115(4):270-3. doi: 10.1258/0022215011907424.
Canalplasty is the surgical procedure whereby the external auditory meatus is widened. The indications include exostoses, stenosing external otitis and widening for surgical access. One hundred consecutive ears operated on by one surgeon are reported. The surgical technique is described in detail, paying particular attention to bone removal from the anterior canal wall. In this paper the majority of cases were occasioned by soft tissue rather than bony stenosis. The re-stenosis rate was four per cent and in each case this was associated with the use of a middle temporal artery flap. Partial, transient, delayed facial palsy occurred in two per cent, probably relating to thermal injury transmitted from the burr. A full, spontaneous recovery of facial function occurred in each case. This is a safe and effective technique for canal widening.
外耳道成形术是一种使外耳道变宽的外科手术。其适应症包括外生骨疣、外耳道狭窄性炎症以及为手术入路进行的扩宽。本文报告了由一位外科医生连续实施手术的100只耳朵的情况。详细描述了手术技术，特别关注从外耳道前壁去除骨质的操作。在本文中，大多数病例是由软组织而非骨质狭窄引起的。再狭窄率为4%，且每例均与使用颞中动脉皮瓣有关。2%的病例出现了部分性、暂时性、迟发性面神经麻痹，可能与磨钻传递的热损伤有关。每例面神经功能均完全自发恢复。这是一种安全有效的外耳道扩宽技术。
