Anatomical study between the correlation of the arcuate eminence and the superior semicircular canal

García-Barrios, A. (Universidad de Zaragoza) ; Cisneros, A. I. (Universidad de Zaragoza) ; Obon, J. (Universidad de Zaragoza) ; Crovetto, R. ; Benito, J. (Universidad de Zaragoza) ; Whyte, J. (Universidad de Zaragoza)
Anatomical study between the correlation of the arcuate eminence and the superior semicircular canal
Resumen: Objective
To study the anatomical correlation between the arcuate eminence and the superior semicircular canal.

Material and methods
A study of the height of the arcuate eminence was carried out in 295 temporal bones. In addition, 30 temporals with different heights of the arcuate eminence (10 flat, 10 prominent and 10 very prominent) were randomly selected and radiological tests were performed by computed tomography (Pöschl projection) and subsequent dissection by milling until the apex of the superior semicircular canal was found, establishing, with both methods, the anatomical relationship with the arcuate eminence.

Results
The arcuate eminence was classified as: smooth, when there was no relief (1.7%); flat, measured less than 1 mm (20.3%), prominent, measured between 1 and 2 mm, in (62%), and very prominent, measured above 2 mm (12.6%). The tomographic study (CT) and its subsequent dissection by bone milling showed a direct relationship between the arcuate eminence and the semicircular canal only when it was flat, while the rest of the types corresponded to the presence of pneumatized peri-labyrinthine cells and/or cancellous bone without a direct anatomical relationship with the apex of the superior semicircular canal.

Conclusion
The correlation between the arcuate eminence and the superior semicircular canal is direct only when it is flat (1 mm), being related to peri-labyrinthine cells and/or cancellous bone when the arcuate eminence is prominent or very prominent.

Idioma: Inglés
DOI: 10.1007/s00276-021-02834-2
Año: 2021
Publicado en: SURGICAL AND RADIOLOGIC ANATOMY 43, 11 (2021), 1845-1850
ISSN: 0930-1038

Tipo y forma: Artículo (Versión definitiva)
Área (Departamento): Area Anatom.Embriol.Humana (Dpto. Anatom.Histolog.Humanas)

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