Microvascular approach to function and appearance of large orbital maxillary defects.

Forty-three patients with major three-dimensional orbitomaxillary defects underwent 48 free-tissue transfers for defects arising from resection of a neoplasm or trauma. Defects were complex, involving the malar skin, mandible, lateral nasal wall, orbit, palate, and brain. A three-dimensional approach attempting to recreate the midface by folding the flaps was the usual method, with subsequent revisions if necessary. Ten patients had simultaneous free bone grafts and 6 had vascularized bone grafts. There were three flap failures and four perioperative deaths. Excluding the 4 deaths, the results were assessed as excellent in 25 patients, good in 12, and poor in 2. Free-tissue transfer is a reliable method of providing enough tissue at one initial operation to satisfy complex three-dimensional defects of the orbitomaxillary region. Followed by minor revision, it provides a means of restoring function and appearance without multiple staged procedures with a high risk of failure.