THE CRANIOFACIAL APPROACH TO ANTERIOR SKULL BASE TUMORS

The craniofacial approach for resection of tumors of the nose, paranasal sinuses and orbit is well established. The operation must combine good access, sound oncologic resection, and acceptable cosmesis. Many techniques have been described that encompass all of these factors. Usually some sacrifice in cosmesis is inevitable. Most techniques also suggest removal of a plate of bone with subsequent replacement. With the removal of the tumor there is a communication between the nasal chamber and the extradural space (or brain if dura has been resected). This is usually closed with an inferiorly based pericranial flap. We have utilized a technique that hinges the bone flap laterally on the temporalis muscle. This results in the bone flap remaining vascularized. By maintaining a viable vascular bone flap this may allow for better wound healing and a decreased incidence of complications. Furthermore, we describe a technique of a contralaterally-based pericranial flap that is more extensive than the anteriorly based flaps. It may also be inset without fear of vascular compromise. Use of this technique in four patients will be described.