Cadaveric Analysis of Accessory Foramina in the Orbito-Sphenoid Region

Purpose: This study confirms the presence of accessory foramina in the orbito-sphenoid region, reinforcing their potential impact on neurovascular injury and surgical outcomes. Continued data collection will enhance accuracy and generalizability, emphasizing the need for presurgical visualization to optimize patient safety and surgical success. Methods: This study examined variations in the orbito-sphenoidal region using donor skulls (n=10) from A.T. Still University’s Gift of Body Program. Careful dissection exposed the optic canal and superior orbital fissure, and cranial variations were analyzed. Results: Three donor skulls exhibited accessory foramina: two with bilateral accessory foramina and one with a single foramen in the left orbit. Foramina diameters ranged from 0.687 mm to 1.204 mm, with a mean of 1.015 mm. These findings suggest that cranial remodeling often results in variations such as accessory foramina, emphasizing the importance of preoperative visualization to reduce the risk of neurovascular damage. Further research in larger, more diverse populations is needed to better understand the clinical implications of these variations. Conclusion: This study confirms the presence of accessory foramina in the orbito-sphenoid region, reinforcing the need for presurgical visualization to minimize neurovascular risks. Continued research will improve accuracy and generalizability, aiding in safer surgical planning.