Summary
In this paper, we present the results of our investigations on the neuro-arterial relations in the region of the optic canal. A thorough knowledge of the microanatomic features of the ophthalmic artery, optic canal and optic nerve is very important for surgeons approaching lesions of this area. We aimed to extend our present knowledge of the origin of the ophthalmic artery and microsurgical anatomy of the optic canal with exposure of the optic nerve. The optic canal walls and width and height of the orbital and cranial apertures, and thickness of the bony roof of the optic canal were measured on the right and left sides of 57 sphenoid bones, 102 skull bases and 58 fixed adult cadaver heads. The ophthalmic artery originated from the rostromedial circumference of the internal carotid artery in 51.8%, from the medial circumference in 26.2% and the laterobasal circumference in 22% of the specimens. The outer diameter of the ophthalmic artery at its origin was 1.81±0.36 mm on the right and 1.75±0.37 mm on the left side.
Résumé
Dans cet article, nous présentons les résultats de nos investigations sur les rapports vasculo-nerveux dans la région du canal optique. Une complète connaissance des caractéristiques micro-anatomiques de l'artère ophtalmique, du canal optique et du nerf optique est très importante pour les chirurgiens abordant des lésions de cette zone. Nous avons essayé d'étendre notre connaissance actuelle de l'origine de l'artère ophtalmique et de l'anatomie micro-chirurgicale du canal optique avec exposition du nerf optique. Les parois du canal optique, l'étendue et la hauteur des orifices crânien et orbitaire et l'épais seur du toit osseux du canal optique ont été mesurées sur les côtés droits et gauches de 57 os sphénoïdes, 102 bases du crâne et 58 têtes embaumées de cadavres adultes. L'artère ophtalmique naissait de la face rostro-médiale de l'artère carotide interne dans 51,8 % des cas, de la face médiale dans 26,2 % des cas, et de la face latérobasale dans 22 % des cas. Le diamètre externe de l'artère ophtalmique à son origine était de 1,81±0,36 mm du côté droit et 1,75±0,37 mm du côté gauche.
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Govsa, F., Erturk, M., Kayalioglu, G. et al. Neuro-arterial relations in the region of the optic canal. Surg Radiol Anat 21, 329–335 (1999). https://doi.org/10.1007/BF01631334
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DOI: https://doi.org/10.1007/BF01631334