Quatela V C, Goldman N D
Division of Otolaryngology-Head & Neck Surgery, University of Rochester Medical Center, New York 14607, USA.
Facial Plast Surg. 1995 Oct;11(4):257-73. doi: 10.1055/s-2008-1064542.
Management of microtia can be one of the most rewarding yet humbling challenges faced by the reconstructive surgeon. The preferred method of total auricular reconstruction is with autologous cartilage and skin, based on modifications of the methods of Tanzer and Brent. Our goals in auricular reconstruction of microtia are: (1) a satisfied patient; (2) proper positioning; and (3) a pleasing size and contour. The reconstructive process in classic microtia reconstruction can be divided into four stages. The first stage is the creation and placement of the underlying framework derived from the autologous rib cartilage of the sixth to eighth ribs. The second stage is rotation of the lobule from the microtia remnant into position inferiorly on the helical rim. The third stage is elevation by creation of an auriculocephalic angle with a skin graft. The final stage is formation of the tragus from a composite graft from the opposite ear. Atypical microtia presents distinct challenges to the reconstructive surgeon. Complete framework insertion may not be necessary with the presence of some recognizable structure. Other circumstances arise that make each reconstruction unique, such as low-lying hairline or skin shortage. The extreme situations of skin shortage will benefit from the use of a temporoparietal fascia flap. However, adherence to the well-established principles of total auricular reconstruction will lead to satisfaction of the patient, the patient's family, and the surgeon.
小耳畸形的治疗可能是重建外科医生面临的最有意义却又令人谦逊的挑战之一。基于坦泽(Tanzer)和布伦特(Brent)方法的改良,全耳再造的首选方法是使用自体软骨和皮肤。我们在小耳畸形耳再造中的目标是:(1)让患者满意;(2)正确定位;(3)大小和轮廓美观。经典小耳畸形再造过程可分为四个阶段。第一阶段是制作并植入由第六至第八肋自体肋软骨制成的耳支架。第二阶段是将耳垂从小耳畸形残端旋转至耳轮缘下方的合适位置。第三阶段是通过植皮形成耳颅角以抬高耳部。最后阶段是用对侧耳朵的复合组织移植形成耳屏。非典型小耳畸形给重建外科医生带来了独特的挑战。若存在一些可识别的结构,可能无需完全植入耳支架。还会出现其他使每次再造都独一无二的情况,比如发际线低或皮肤不足。皮肤极度短缺的极端情况可受益于颞顶筋膜瓣的使用。然而,遵循成熟的全耳再造原则将使患者、患者家属和医生都感到满意。