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CASE REPORTS
JOURNAL ARTICLE
REVIEW
Reconstruction of congenital microtia by using a tissue expander.
Journal of Medical and Dental Sciences 2000 June
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.
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