title: Reconstruction of congenital microtia by using a tissue expander.
abstract: In the conventional reconstruction of microtia, skin grafting is an absolute necessity because of the scantiness of the skin tissue at the affected site. As the result, color- and texture- matching as well as sensory preservation remain to be improved. To solve these problems, we developed a surgical procedure for reconstruction of microtia by using a tissue expander, which allowed us to reconstruct the erect auricle without the need for skin grafting. In this paper, we introduce and discuss our method using the tissue expander with a review of the literature. We operated on a total of 38 patients with microtia. Most of the patients were around 10 years of age, but 3 were adults. Autogenous cartilage was used, and the helix, antihelix, concha, and tragus were reproduced. Initially, 70 ml custom-made expanders were used; after that, 75 ml or 95 ml ready-made expanders were used. The erect auricle was reconstructed by the primary procedure in 33 patients. The reconstructed auricle was satisfactory in color- and texture-matching and had nearly normal sensation. No major absorption of the cartilage has been noted for 15 years, although a slight retraction of the expanded skin was observed in each patient. In conclusion, microtia repair by using a tissue expander is superior to that by conventional procedures in color- and texture- matching and sensory preservation of the reconstructed auricle.
authors.affiliation: Department of Plastic and Reconstructive Surgery, Tokyo Medical and Dental University, Yushuma, Japan. hata.plas@med.ac.jp
authors.forename: Y
authors.initials: Y
authors.lastname: Hata
authors.forename: T
authors.initials: T
authors.lastname: Umeda
mesh_terms: D000328:Adult; D002356:Cartilage / Q000637:transplantation; D002648:Child; D003080:Cold Temperature; D004431:Ear, External / Q000002:abnormalities* / Q000033:anatomy & histology / Q000601:surgery; D004867:Equipment Design; D005260:Female; D005500:Follow-Up Studies; D006358:Hot Temperature; D006801:Humans; D008297:Male; D010146:Pain / Q000503:physiopathology; D019651:Plastic Surgery Procedures; D012677:Sensation / Q000502:physiology; D012880:Skin Pigmentation / Q000502:physiology; D016038:Skin Transplantation / Q000295:instrumentation / Q000379:methods; D015626:Tissue Expansion / Q000379:methods; D015625:Tissue Expansion Devices; D014110:Touch / Q000502:physiology; D014182:Transplantation, Autologous; D014945:Wound Healing