Optic Nerve Decompression through a Supraorbital Approach

TitleOptic Nerve Decompression through a Supraorbital Approach
Publication TypeJournal Article
Year of Publication2015
AuthorsRigante L, Evins AI, Berra LV, Beer-Furlan A, Stieg PE, Bernardo A
JournalJ Neurol Surg B Skull Base
Volume76
Issue3
Pagination239-47
Date Published2015 Jun
ISSN2193-6331
Abstract

Objective We propose a stepwise decompression of the optic nerve (ON) through a supraorbital minicraniotomy and describe the surgical anatomy of the ON as seen through this approach. We also discuss the clinical applications of this approach. Methods Supraorbital approaches were performed on 10 preserved cadaveric heads (20 sides). First, 3.5-cm skin incisions were made along the supraciliary arch from the medial third of the orbit and extended laterally. A 2 × 3-cm bone flap was fashioned and extradural dissections were completed. A 180-degree unroofing of the ON was achieved, and the length and width of the proximal and distal portions of the optic canal (OC) were measured. Results The supraorbital minicraniotomy allowed for identification of the anterior clinoid process and other surgical landmarks and adequate drilling of the roof of the OC with a comfortable working angle. A 25-degree contralateral head rotation facilitated visualization of the ON. Conclusion The supraorbital approach is a minimally invasive and cosmetically favorable alternative to more extended approaches with longer operative times used for the management of ON decompression in posttraumatic or compressive optic neuropathy from skull base pathologies extending into the OC. The relative ease of this approach provides a relatively short learning curve for developing neurosurgeons.

DOI10.1055/s-0034-1543964
Alternate JournalJ Neurol Surg B Skull Base
PubMed ID26225308
PubMed Central IDPMC4433391