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Endonasal, transmaxillary, transpterygoid approach to the foramen ovale: radio-anatomical study of surgical feasibility

Published online by Cambridge University Press:  22 October 2013

V E Kantola
Affiliation:
Laboratory of Human Anatomy, School of Life Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Scotland, UK
G W McGarry
Affiliation:
Department of Ear, Nose and Throat Surgery, Glasgow Royal Infirmary, Scotland, UK
P M Rea*
Affiliation:
Laboratory of Human Anatomy, School of Life Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Scotland, UK
*
Address for correspondence: Dr P M Rea, Laboratory of Human Anatomy, Thomson Building, School of Life Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow G12 8QQ, Scotland, UK Fax: +44 (0)141 330 4299 E-mail: Paul.Rea@glasgow.ac.uk

Abstract

Objective:

This study aimed to examine the feasibility of an endonasal, transmaxillary, transpterygoid approach to the foramen ovale by examining key anatomical, radiological and surgical landmarks.

Method:

Measurements were taken from 183 patients' computed tomography scans using BrainLAB iPlan 1.1 Cranial software. Endoscopic dissection was then carried out on a cadaver to assess surgical viability.

Results:

We found that the distances from the posterior maxillary wall to the foramen ovale and from the anterior nasal spine to the foramen ovale were statistically significantly larger in men than women. The distance from the base of the lateral pterygoid plate to the foramen ovale, and the angle between the foramen ovale, the anterior nasal spine and the sphenoid rostrum, were constant between the sexes. The importance of the lateral pterygoid plate in locating the foramen ovale was demonstrated.

Conclusion:

With the increasing popularity of image guidance and assisted navigation in endoscopic surgery, these findings increase anatomico-radiological understanding of the surgical approach investigated.

Information

Type
Main Articles
Copyright
Copyright © JLO (1984) Limited 2013 

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