Microtia: definición, clasificación y tratamiento. Revisión de la literatura
Jorge Yanine (1), Carlos Giugliano (2)
(1) Interno de Medicina, Universidad de Chile, Santiago, Chile
(2) Cirujano Plástico; Director Médico y Vicepresidente Ejecutivo de la Fundación Alfredo Gantz Mann. Hospital del Niño con Fisura. Profesor asociado Facultad de Medicina Universidad de Chile.
Cirujano Plástico, Clínica Alemana, Santiago, Chile

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The ear is an important aesthetic unity in humans. There is a varying degree of malformations, Chile has an incidence of 1 per 5600 live births. Anatomically the pinna is composed of three main structures: helix-antihelix complex, shell and lobe. It is according to the anomaly present in the external anatomy how it is classified, various systems exist for this, some of them with anatomic surgical utility. The main focus of treatment of these anomalies is the surgical reconstruction, taking various techniques available in the literature, such as the use of implants, prosthetic reconstruction and reconstruction with autologous rib cartilage graft, among others. Reinisch has pioneered the use of implants for reconstruction, while several authors have shown satisfactory results with the use of bone anchored prosthesis. However, the most accepted and used technique is the reconstruction with autologous rib cartilage graft, which was described at the beginning by Tanzer, Walton and Beahm and was later perfected by Brent, who proposed the foundation for modern development. Currently the most accepted and used surgical methods are described by Nagata and Firmin, both with excellent results.