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Optic foramen location on computed tomography.

Vuong Duc Nguyen1, Minh Tran Quang Le2,3, Chuong Dinh Nguyen4

  • 1Department of Otolaryngology, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam.

Archives of Craniofacial Surgery
|September 1, 2023
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Summary
This summary is machine-generated.

The optic foramen is located anterior or posterior to the sphenoid sinus wall in nearly equal measure. This anatomical knowledge is crucial for safe endoscopic sinus surgery.

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Optic nerveOrbitSphenoid sinusTomography

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Area of Science:

  • Anatomy
  • Ophthalmology
  • Neurosurgery

Background:

  • Accurate anatomical knowledge of the optic foramen is vital for endoscopic transnasal surgery.
  • Understanding the optic foramen's position relative to the sphenoid sinus aids surgical planning.

Purpose of the Study:

  • To determine the location of the optic foramen in relation to the anterior sphenoid sinus wall.
  • To measure distances between the optic foramen, anterior sphenoid sinus wall, and carotid prominence.

Main Methods:

  • Analysis of computed tomography (CT) scans from 100 adult patients (200 orbits).
  • Assessment of optic foramen position (anterior/posterior) relative to the anterior sphenoid sinus wall.
  • Measurement of distances to the carotid prominence in the sphenoid sinus.

Main Results:

  • The optic foramen was anterior to the anterior sphenoid sinus wall in 48.5% of orbits and posterior in 51.5%.
  • Mean distance between the optic foramen and anterior sphenoid sinus wall was 3.82 ± 1.25 mm.
  • Mean distances to the carotid prominence were 7.67 ± 1.73 mm (optic foramen) and 7.95 ± 2.53 mm (anterior sphenoid sinus wall).

Conclusions:

  • The optic foramen is nearly equally located anterior or posterior to the anterior sphenoid sinus wall.
  • Mean distance from the optic foramen to the anterior sphenoid sinus wall is approximately 3.82 mm.
  • Findings provide essential anatomical data for surgical navigation.