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Date Published: 27/06/2024
Online Published: 22/05/2024
Abstract Views: 215
Views PDF: 52
DOI: https://doi.org/10.60137/tmhvn.v69i64.117
Issue
Vol. 69 No. 64
Section
Articles
How to Cite
Pham, N. C., Bui, T. H., & Mai, T. T. A. (2024). RADIOLOGICAL ASSESSMENT OF INCUDAL BUTTRESS IN MIDDLE EAR. Vietnam Journal of Otorhinolaryngology - Head and Neck Surgery, 69(64), 49-58. https://doi.org/10.60137/tmhvn.v69i64.117

RADIOLOGICAL ASSESSMENT OF INCUDAL BUTTRESS IN MIDDLE EAR

Ngoc Chat Pham , The Hung Bui, Thi Tram Anh Mai

Main Article Content

Abstract

Introduction: The incudal buttress might serve as a good anatomical lanmark in midle ear surgeries, specially to entry middle ear via  posterior tympanotomy. Incudal buttress, that runs from the tympanic ring laterally to the lateral semicular canal medially, is a compact bone and corrosion resistant the inflamation of chronic otitis media. Understanding the anatomic variation would not only help in readiness to deal with the consequences during sugery but also minimize potential complications and plan the surgical time. The main purpose of this study was to determine the frequency distribution of distance from incudal buttress to some nearby contents in radiographically normal temporal bones and to calculate the expected population averages and standard deviations.


Objectives: Determine the the distance between the incudal buttress to round window, tegmen tympani and the take-off/crotch of the chorda nerve.


Methods: Series descriptive study on 120 patients (65 women, 55 men) aged 16 years and older, underwent a CT scan of the temporal bone at the Ho Chi Minh City Otolaryngology Hospital.


Results: The mean distances from incudal buttress to round window, tegmen tympani and the take-off/crotch of the chorda tympani nerve are  7,72 ± 0,46mm; 8,37 ± 1,56 mm; 10,91 ± 1,93 mm;, respestively . No statistically significant differences in these distances were found by age. These distances are almost significant higher in men than women, statistically. There is correlation between the distance from incudal  buttress to round window and the take off/crotch of the chorda tympani nerve and the pneumatization of the temporal bone .


Conclusions: As there is a lot of variability in distances from incudal buttress to round window, tegmen tympani, the take-off/crotch of the chorda tympani nerve and the facial recess width, mean values are not much significant. The range of variability should be reported and knowledge of these to surgeon, may help avoid inadvertent damage to the chorda tympani nerve and the facial nerve.

Article Details

Keywords

Incudal buttress, Tegmem Tympani, Round Window, The take-off/crotch of the chorda tympani nerve, Pneumatization of temporal bone, Posterior Tynpanotomy

References

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