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Is there a relationship between mastoid pneumatisation and facial canal dimensions?

Published online by Cambridge University Press:  23 May 2019

M Inal ,
N Bayar Muluk ,
N Asal ,
M H Şahan ,
G Şimşek  and
O K Arikan
M Inal
Affiliation:
Radiology Department, Faculty of Medicine, Kirikkale University, Turkey
N Bayar Muluk*
Affiliation:
ENT Department, Faculty of Medicine, Kirikkale University, Turkey
N Asal
Affiliation:
Radiology Department, Faculty of Medicine, Kirikkale University, Turkey
M H Şahan
Affiliation:
Radiology Department, Faculty of Medicine, Kirikkale University, Turkey
G Şimşek
Affiliation:
ENT Department, Faculty of Medicine, Kirikkale University, Turkey
O K Arikan
Affiliation:
VM Mersin Medical Park Hospital, ENT Department, Mersin, Turkey
*
Author for correspondence: Dr Nuray Bayar Muluk, Birlik Mahallesi, Zirvekent 2, Etap Sitesi, C-3 blok, no: 6-3/43, 06610 Çankaya, Ankara, Turkey E-mail: nuray.bayar@yahoo.com Fax: +90 312 496 4073
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Abstract

Objective

To evaluate mastoid pneumatisation and facial canal dimensions.

Method

In this retrospective study, 169 multidetector computed tomography scans of temporal bone were reviewed. Facial canal dimensions were evaluated at the labyrinthine, tympanic and mastoid segments using axial and coronal multidetector computed tomography scans of temporal bone. Mastoid pneumatisation and facial canal dehiscence were evaluated. Facial canal dehiscence was measured if it was found to be present.

Results

This study showed that facial canal dimensions decreased in pneumatised mastoids. Facial canal dimensions in females were smaller than in males. Facial canal dehiscence was detected in 5.9 per cent and 6.5 per cent of the patients on the right and left sides, respectively. No correlations were found between facial canal dehiscence and mastoid pneumatisation. The length of dehiscence was 1.92 ± 0.44 mm (range, 0.86–2.51 mm) on the left side. In older subjects, left facial canal dehiscence was detected more, and the length of the dehiscence increased.

Conclusion

This study concluded that during surgery, facial canal dehiscence should be kept in mind in order to avoid complications.

Keywords

Mastoid PneumatizationFacial CanalDehiscenceLabyrinthineTympanicMastoid
Type
Main Articles
Information
The Journal of Laryngology & Otology , Volume 133 , Issue 7 , July 2019 , pp. 546 - 553
Copyright
Copyright © JLO (1984) Limited, 2019 

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Footnotes

Dr N Bayar Muluk takes responsibility for the integrity of the content of the paper

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