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Evaluation of the Relationship Between Facial Nerve and Lateral Semicircular Canal in the Posterior Tympanotomy Approach

Background : To clinically and radiologically evaluate the relationship between the facial nerve and the lateral semicircular canal during posterior tympanotomy. Methods: Patients who received cochlear implants between 2010 and 2020 were included in the study. The relationship between the facial ner...

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Autores principales: Yilmaz, Ismail, Inan, Serhat, Vural, Omer, Akdogan, Volkan, Hizal, Evren, Ozer, Fulya, Yavuz, Haluk, Naci Ozluoglu, Levent
Formato: Online Artículo Texto
Lenguaje:English
Publicado: European Academy of Otology and Neurotology and the Politzer Society 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9450025/
https://www.ncbi.nlm.nih.gov/pubmed/35193847
http://dx.doi.org/10.5152/iao.2022.21167
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author Yilmaz, Ismail
Inan, Serhat
Vural, Omer
Akdogan, Volkan
Hizal, Evren
Ozer, Fulya
Yavuz, Haluk
Naci Ozluoglu, Levent
author_facet Yilmaz, Ismail
Inan, Serhat
Vural, Omer
Akdogan, Volkan
Hizal, Evren
Ozer, Fulya
Yavuz, Haluk
Naci Ozluoglu, Levent
author_sort Yilmaz, Ismail
collection PubMed
description Background : To clinically and radiologically evaluate the relationship between the facial nerve and the lateral semicircular canal during posterior tympanotomy. Methods: Patients who received cochlear implants between 2010 and 2020 were included in the study. The relationship between the facial nerve and the lateral semicircular canal was classified into 3 types by evaluating the axial section computed tomography images. If the facial nerve passed medially without contacting the lateral semicircular canal dome, it was classified as type 1; if the facial nerve passed by contacting the medial border of the lateral semicircular canal dome, it was classified as type 2; and if the facial nerve contacted the lateral border of the lateral semicircular canal dome or passed more laterally, it was classified as type 3. Results: In total, 309 ears of 257 patients [139 males (54.1%) and 118 females (45.9%)] were included in the study. Ninety-three (30.1%) of the ears were classified as type 1, 179 (57.9%) were type 2, and 37 (12%) were type 3. It was found that the combined posterior tympanotomy/endomeatal approach was used in 6 ears (1.9%), of which 4 were type 3, and 2 were type 2 (P = .006). Conclusion: Systematic evaluation of the relationship between facial nerve and lateral semicircular canal in computed tomography axial sections might help prevent facial nerve damage that can occur during posterior tympanotomy. It was concluded that type 3 ears should be evaluated in this respect, as a combined posterior tympanotomy/endomeatal approach may be required.
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spelling pubmed-94500252022-09-19 Evaluation of the Relationship Between Facial Nerve and Lateral Semicircular Canal in the Posterior Tympanotomy Approach Yilmaz, Ismail Inan, Serhat Vural, Omer Akdogan, Volkan Hizal, Evren Ozer, Fulya Yavuz, Haluk Naci Ozluoglu, Levent J Int Adv Otol Original Article Background : To clinically and radiologically evaluate the relationship between the facial nerve and the lateral semicircular canal during posterior tympanotomy. Methods: Patients who received cochlear implants between 2010 and 2020 were included in the study. The relationship between the facial nerve and the lateral semicircular canal was classified into 3 types by evaluating the axial section computed tomography images. If the facial nerve passed medially without contacting the lateral semicircular canal dome, it was classified as type 1; if the facial nerve passed by contacting the medial border of the lateral semicircular canal dome, it was classified as type 2; and if the facial nerve contacted the lateral border of the lateral semicircular canal dome or passed more laterally, it was classified as type 3. Results: In total, 309 ears of 257 patients [139 males (54.1%) and 118 females (45.9%)] were included in the study. Ninety-three (30.1%) of the ears were classified as type 1, 179 (57.9%) were type 2, and 37 (12%) were type 3. It was found that the combined posterior tympanotomy/endomeatal approach was used in 6 ears (1.9%), of which 4 were type 3, and 2 were type 2 (P = .006). Conclusion: Systematic evaluation of the relationship between facial nerve and lateral semicircular canal in computed tomography axial sections might help prevent facial nerve damage that can occur during posterior tympanotomy. It was concluded that type 3 ears should be evaluated in this respect, as a combined posterior tympanotomy/endomeatal approach may be required. European Academy of Otology and Neurotology and the Politzer Society 2022-01-01 /pmc/articles/PMC9450025/ /pubmed/35193847 http://dx.doi.org/10.5152/iao.2022.21167 Text en 2022 authors https://creativecommons.org/licenses/by-nc/4.0/ Content of this journal is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. (https://creativecommons.org/licenses/by-nc/4.0/)
spellingShingle Original Article
Yilmaz, Ismail
Inan, Serhat
Vural, Omer
Akdogan, Volkan
Hizal, Evren
Ozer, Fulya
Yavuz, Haluk
Naci Ozluoglu, Levent
Evaluation of the Relationship Between Facial Nerve and Lateral Semicircular Canal in the Posterior Tympanotomy Approach
title Evaluation of the Relationship Between Facial Nerve and Lateral Semicircular Canal in the Posterior Tympanotomy Approach
title_full Evaluation of the Relationship Between Facial Nerve and Lateral Semicircular Canal in the Posterior Tympanotomy Approach
title_fullStr Evaluation of the Relationship Between Facial Nerve and Lateral Semicircular Canal in the Posterior Tympanotomy Approach
title_full_unstemmed Evaluation of the Relationship Between Facial Nerve and Lateral Semicircular Canal in the Posterior Tympanotomy Approach
title_short Evaluation of the Relationship Between Facial Nerve and Lateral Semicircular Canal in the Posterior Tympanotomy Approach
title_sort evaluation of the relationship between facial nerve and lateral semicircular canal in the posterior tympanotomy approach
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9450025/
https://www.ncbi.nlm.nih.gov/pubmed/35193847
http://dx.doi.org/10.5152/iao.2022.21167
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