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Microsurgical anatomy of the superior orbital fissure.
Clin Anat. 2007 May; 20(4):362-6.CA

Abstract

The microanatomy of the superior orbital fissure (SOF) was studied in 96 sides of cadaver specimens. The SOF is a narrow bony cleft that lies at the apex of the orbit between the greater and lesser wings of the sphenoid. Through this fissure, many important structures enter the orbit from the middle cranial fossa including the third, fourth, sixth cranial nerves, and the ophthalmic branch of the fifth nerve. In addition, the superior opthalmamic vein exits the orbit to drain into the cavernous sinus via the SOF. The fissure can be divided into three anatomical regions by the annulus of Zinn (common annular tendon): the lateral, central, and inferior regions. The lateral wall of the SOF can also be divided between the upper and lower segments, and the angle between them was measured to be 144.27 degrees +/- 20.03 degrees . Defining these regions is useful in describing the course and placement of the nerves and vasculature in the SOF. Managing lesions at the orbital apex requires an extensive knowledge of the cranial base and the intracranial and extracranial relationships of the anatomical structures coursing through the SOF. The goal of this study was to describe the microanatomy of the SOF region in detail and to provide a reference for surgical procedures involving the orbital apex.

Authors+Show Affiliations

Department of Anatomy, Peking University Health Science Center, Beijing, China.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

17080461

Citation

Shi, Xianzhong, et al. "Microsurgical Anatomy of the Superior Orbital Fissure." Clinical Anatomy (New York, N.Y.), vol. 20, no. 4, 2007, pp. 362-6.
Shi X, Han H, Zhao J, et al. Microsurgical anatomy of the superior orbital fissure. Clin Anat. 2007;20(4):362-6.
Shi, X., Han, H., Zhao, J., & Zhou, C. (2007). Microsurgical anatomy of the superior orbital fissure. Clinical Anatomy (New York, N.Y.), 20(4), 362-6.
Shi X, et al. Microsurgical Anatomy of the Superior Orbital Fissure. Clin Anat. 2007;20(4):362-6. PubMed PMID: 17080461.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Microsurgical anatomy of the superior orbital fissure. AU - Shi,Xianzhong, AU - Han,Hui, AU - Zhao,Jing, AU - Zhou,Changman, PY - 2006/11/3/pubmed PY - 2007/6/6/medline PY - 2006/11/3/entrez SP - 362 EP - 6 JF - Clinical anatomy (New York, N.Y.) JO - Clin Anat VL - 20 IS - 4 N2 - The microanatomy of the superior orbital fissure (SOF) was studied in 96 sides of cadaver specimens. The SOF is a narrow bony cleft that lies at the apex of the orbit between the greater and lesser wings of the sphenoid. Through this fissure, many important structures enter the orbit from the middle cranial fossa including the third, fourth, sixth cranial nerves, and the ophthalmic branch of the fifth nerve. In addition, the superior opthalmamic vein exits the orbit to drain into the cavernous sinus via the SOF. The fissure can be divided into three anatomical regions by the annulus of Zinn (common annular tendon): the lateral, central, and inferior regions. The lateral wall of the SOF can also be divided between the upper and lower segments, and the angle between them was measured to be 144.27 degrees +/- 20.03 degrees . Defining these regions is useful in describing the course and placement of the nerves and vasculature in the SOF. Managing lesions at the orbital apex requires an extensive knowledge of the cranial base and the intracranial and extracranial relationships of the anatomical structures coursing through the SOF. The goal of this study was to describe the microanatomy of the SOF region in detail and to provide a reference for surgical procedures involving the orbital apex. SN - 0897-3806 UR - https://www.unboundmedicine.com/medline/citation/17080461/Microsurgical_anatomy_of_the_superior_orbital_fissure_ L2 - https://doi.org/10.1002/ca.20391 DB - PRIME DP - Unbound Medicine ER -