Supraorbital Keyhole Versus Pterional Approach: A Morphometric Anatomical Study.

Objective: Although the supraorbital (SO) keyhole approach has a wide range of indications, its routine usefulness with the advance of current technology has not been fully evaluated. In an attempt to address this issue, a cadaveric morphometric analysis to the supra- and parasellar regions was performed, comparing the standard Pterional craniotomy (PT) with the SO keyhole.

Methods: ETOH-fixed and silicone-injected human cadaveric heads were used.