The midline supra-orbital approach, using a large single free bone flap. Technical note.

Surgical access to the anterior frontal region of the skull base is facilitated by the removal of a fronto-orbital bone flap. This technique was first described as a two-step procedure by Cophignon. We recently devised a simplified one-step approach in which a single bifrontal supra-orbital bone flap is removed. This report is a technical description and resume of our experiences.