Modified procedure for reconstructing the inferior wall of the orbit: identification of a reliable new landmark

Abstract

Background: In orbital floor reconstruction, fractures involving the slope of the posterior end of the orbital floor make it difficult to determine the best location for implant placement. Therefore, landmarks for reconstruction are desirable to perform safe and reproducible reconstruction surgery.

Methods: We developed a surgical procedure that focuses on three orbital landmarks: the infraorbital nerve, the inferior margin of the greater wing of the sphenoid bone, and the posterior superior wall of the maxilla.

Conclusions: Landmark-based orbital floor fracture reconstruction enables accurate reconstruction of fractures that extend to the slope of the posterior end of the orbital floor.

Keywords: Bone–mucosal flap; Greater wing of the sphenoid bone; Inferior orbital fissure; Transnasal approach; Transorbital approach.