Anterior Clinoidectomy Enhances Tumour Resection And Visual Outcomes In Sphemnoorbital Meningioma En Plaque

Abstract

Background: Spheno-orbital meningiomas (SOMs) are complex skull base tumors that often require extensive surgical resection to achieve favorable visual and cosmetic outcomes. Anterior clinoidectomy (AC) has been proposed as a method to improve surgical exposure and facilitate decompression of the optic nerve. This study investigates the effect of AC on visual and proptosis outcomes in 21 patients with SOM, 17 of whom underwent AC during tumor resection.

Results: This study investigates the impact of anterior clinoidectomy (AC) on visual function, proptosis reduction, and extent of resection in 21 patients undergoing frontotemporal approach for SOM. Patients were divided into two groups: Anterior Clinoidectomy (AC) group (n=17) and Non-Anterior Clinoidectomy (Non-AC) group (number=4). Our findings indicate that Anterior Clinoidectomy significantly improves visual and ocular motility outcomes, provides superior proptosis resolution, and facilitates more complete tumor resection, suggesting a vital role for AC in optimizing surgical outcomes for sphenoorbital meningioma.

Conclusions: Anterior clinoidectomy, when performed via a frontotemporal approach, offers significant advantages in the management of spheno-orbital meningioma en plaque. It enhances visual and ocular motor recovery, more effectively reduces proptosis, and enables greater tumor resection. These findings advocate for its routine use in appropriately selected cases to optimize functional and oncological outcomes.