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Ann Plast Surg. 2009 Apr;62(4):384-9. doi: 10.1097/SAP.0b013e31819fae51.

Reconstruction of congenital microtia-atresia: outcomes with the Medpor/bone-anchored hearing aid-approach.

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Multidisciplinary Microtia Service, Manhattan Eye, Ear, and Throat Hospital, New York, NY, USA.


Ideal surgery for congenital microtia-atresia would offer excellent cosmetic and hearing rehabilitation, with minimal morbidity. Classic approaches require multiple procedures, including rib cartilage harvest and aural atresia repair. Our facial plastic and otologic team approach incorporates a high-density porous polyethylene (Medpor, Porex Surgical, Newnan, GA) auricular framework, followed by single-stage bone-anchored hearing aid (BAHA) implantation. We evaluated the efficacy, safety, and morbidity of this 2-stage dual system approach. A prospective database of microtia patients was used to identify patients undergoing combined Medpor/BAHA auricular reconstruction and hearing rehabilitation between 2003 and 2006. The first stage involves placement of a Medpor framework beneath a temporoparietal fascia flap, followed by a second-stage procedure for lobule transposition and BAHA implantation. Twenty-five patients (28 ears) were evaluated. Aesthetic quality of the implants was excellent, with a high degree of framework detail visible, and a postauricular crease created in all patients. All patients were satisfied with the cosmetic result. There were no major Medpor complications such as infection, extrusion, loss of implant, or flap necrosis, and a 10.7% incidence of minor complications requiring operative revision. BAHA significantly improved hearing in all patients, with a complication rate of 31.8%, mainly skin overgrowth and cellulitis. The Medpor/BAHA dual plastic-otologic approach to microtia-atresia has produced excellent cosmetic results and hearing outcomes, which compare favorably to traditional microtia-atresia repair. This is a 2-stage aesthetic and functional protocol with an acceptably low rate of complications, which safely and efficiently achieves both aesthetic and functional goals.

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