Refinements in the elevation of reconstructed auricles in microtia.

ABSTRACT

BACKGROUND: In the treatment of microtia, the search has been for surgical techniques that prevent postoperative complications and realize sufficient and stable projection of the constructed ear. METHODS: Cartilage was fixed with absorbable synthetic thread instead of wire because wire has a high risk of exposure. A subcutaneous pedicle was added to the concha to prevent skin necrosis. Dead space and hematoma creation were prevented with vacuum aspiration, bolster fixation, and microdrainage with small tubes. A triangular skin flap connecting to the ear lobe was used to prevent shrinkage on the posteroinferior portion of the concha. Projection of the inferior portion of the auricle was supported with a hydroxyapatite-tricalcium phosphate ceramic. RESULTS: Our technique was applied to 42 patients, and none of them experienced slip of the fixed cartilage, auricular deformation, skin necrosis, or infections. Shrinkage of the inferior portion of the auricle was minimal, and good projection was obtained. CONCLUSIONS: The authors' technique prevents complications and realizes good shape and projection of the auricle in total reconstruction of the auricle. Hydroxyapatite-tricalcium phosphate ceramic is a useful material that complements the cartilage shortage.