Hostname: page-component-6766d58669-l4t7p Total loading time: 0 Render date: 2026-05-19T09:07:38.772Z Has data issue: false hasContentIssue false

A volumetric three-dimensional evaluation of invasiveness of an endoscopic and microscopic approach for transmeatal visualisation of the middle ear

Published online by Cambridge University Press:  22 April 2021

A H A Baazil
Affiliation:
Department of Otorhinolaryngology, Amsterdam, The Netherlands
J G G Dobbe
Affiliation:
Department of Biomedical Engineering and Physics, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
E van Spronsen
Affiliation:
Department of Otorhinolaryngology, Amsterdam, The Netherlands
F A Ebbens
Affiliation:
Department of Otorhinolaryngology, Amsterdam, The Netherlands
F G Dikkers
Affiliation:
Department of Otorhinolaryngology, Amsterdam, The Netherlands
G J Streekstra
Affiliation:
Department of Biomedical Engineering and Physics, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
M J F de Wolf*
Affiliation:
Department of Otorhinolaryngology, Amsterdam, The Netherlands
*
Author for correspondence: Dr Maarten de Wolf, Department of Otorhinolaryngology, Amsterdam University Medical Centers, Academic Medical Center, Meibergdreef 9, Amsterdam 1105 AZ, the Netherlands E-mail: m.j.dewolf@amsterdamumc.nl

Abstract

Objective

This study aimed to compare the necessary scutum defect for transmeatal visualisation of middle-ear landmarks between an endoscopic and microscopic approach.

Method

Human cadaveric heads were used. In group 1, middle-ear landmarks were visualised by endoscope (group 1 endoscopic approach) and subsequently by microscope (group 1 microscopic approach following endoscopy). In group 2, landmarks were visualised solely microscopically (group 2 microscopic approach). The amount of resected bone was evaluated via computed tomography scans.

Results

In the group 1 endoscopic approach, a median of 6.84 mm3 bone was resected. No statistically significant difference (Mann–Whitney U test, p = 0.163, U = 49.000) was found between the group 1 microscopic approach following endoscopy (median 17.84 mm3) and the group 2 microscopic approach (median 20.08 mm3), so these were combined. The difference between the group 1 endoscopic approach and the group 1 microscopic approach following endoscopy plus group 2 microscopic approach (median 18.16 mm3) was statistically significant (Mann–Whitney U test, p < 0.001, U = 18.000).

Conclusion

This study showed that endoscopic transmeatal visualisation of middle-ear landmarks preserves more of the bony scutum than a microscopic transmeatal approach.

Information

Type
Main Articles
Copyright
Copyright © The Author(s), 2021. Published by Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable