Mapping the Posterior Ledge and Optic Foramen in Orbital Floor Blowout Fractures

Abstract

Background The posterior ledge (PL) is a vital structure that supports the implant posteriorly during orbital floor reconstruction. This study describes a technique for mapping the PL in relation to the infraorbital margin (IM) in patients with orbital floor blowout fractures. This study establishes the location of the optic foramen in relation to the PL.

Keywords

• orbital fractures
• blowout fractures
• optic nerve