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Surgical considerations during cochlear implantation: the utility of temporal bone computed tomography

Published online by Cambridge University Press:  04 February 2021

Beomcho Jun  and
Sunwha Song
Beomcho Jun
Affiliation:
Department of Otorhinolaryngology, Uijeongbu St Mary’s Hospital, College of Medicine, Catholic University of Korea, 271, Cheonbo-Ro, Uijeongbu-si, Gyeonggi-do, 11765, Republic of Korea
Sunwha Song*
Affiliation:
Department of Radiology, Uijeongbu St Mary’s Hospital, College of Medicine, Catholic University of Korea, 271, Cheonbo-Ro, Uijeongbu-si, Gyeonggi-do, 11765, Republic of Korea
*
Author for correspondence: Dr Sunwha Song, Department of Radiology, Uijeongbu St Mary's Hospital, College of Medicine, Catholic University of Korea, 271, Cheonbo-Ro, Uijeongbu-si, Gyeonggi-do, 11765, Republic of Korea E-mail: swsong7@catholic.ac.kr
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Abstract

Objective

This paper describes the construction of portals for electrode placement during cochlear implantation and emphasises the utility of pre-operative temporal bone three-dimensional computed tomography.

Methods

Temporal bone three-dimensional computed tomography was used to plan portal creation for electrode insertion.

Results

Pre-operative temporal bone three-dimensional computed tomography can be used to determine the orientation of temporal bone structures, which is important for mastoidectomy, posterior tympanotomy and cochleostomy, and when using the round window approach.

Conclusion

It is essential to create appropriate portals (from the mastoid cortex to the cochlea) in a step-by-step manner, to ensure the safe insertion of electrodes into the scala tympani. Pre-operative three-dimensional temporal bone computed tomography is invaluable in this respect.

Keywords

Cochlear ImplantationComputed Tomography, X-RayTemporal Bone
Type
Main Articles
Information
The Journal of Laryngology & Otology , Volume 135 , Issue 2 , February 2021 , pp. 134 - 141
Copyright
Copyright © The Author(s), 2021. Published by Cambridge University Press

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Footnotes

Dr S Song takes responsibility for the integrity of the content of the paper

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