Peculiaridades anatómicas del canal semicircular superior y su posible implancia clínica
Whyte, Jaime (Universidad de Zaragoza) ; Martínez, Claudio ; Cisneros, Ana (Universidad de Zaragoza) ; Whyte, Ana (Universidad de Zaragoza) ; Crovetto, Miguel Ángel
Resumen: El objetivo fue estudiar las peculiaridades en la morfología apical del canal semicircular superior, a nivel de la eminencia arcuata con la finalidad de obtener conclusiones aplicativas. Se estudiaron 48 cabezas de cadáveres humanos (96 huesos temporales), con la intención de identificar la presencia de adelgazamiento o dehiscencia del canal semicircular superior, así como la existencia de surcos vasculares de la eminencia acuata que, discurriendo sobre el techo del canal, pudieran afectar a su integridad anatómica. El estudio incluye un análisis histológico (Tricrómico de Martins) y radiológico (Tomografía Computarizada) de los hallazgos positivos (dehiscencias y adelgazamientos), así como estudio tomográfico de los canales con surcos vasculares visibles. En un caso (1,04 %) hemos observado cómo el canal presentaba un defecto óseo completo (dehiscencia), en tres (3,12%) el canal presentaba una pared muy delgada cuyo grosor no excedía de 0,2 mm. En 12 casos (12,5%) la eminencia arcuata estaba recorrida por surcos por el que discurrían vasos colaterales meníngeos, que determinaron una concavidad entre 0,1 y 0,2 mm, mientras que el grosor medio de dicha pared en estos casos fue de 1,2 mm. De las tres peculiaridades estudiadas, la falta de cobertura ósea es la que produce el síndrome de dehiscencia del canal semicircular superior. Los canales que presentaban una cubierta adelgazada pueden estar predispuestos a una rotura y por lo tanto causar patología en el canal. En cambio la presencia de surcos vasculares que recorren la superficie apical del canal, no parece tener consecuencias al disminuir minimamente su grosor.
The aim was to study the peculiarities in apical morphology of the superior semicircular canal are studied at level of the arcuate eminence to obtain application conclusions. We have studied 48 heads from human cadavers (96 temporal bones), with the intention of identifying the presence of thinning or dehiscence in the superior semicircular canal, as well as the existence of vascular sulci of the arcuate eminence, which, traveling along the roof of the canal, may affect its anatomical integrity. The study includes a histological (Martin's Trichome method) and a radiological analysis (Computerized Tomography) of the findings (dehiscences and thinnings), and as well as tomographic study of the canals with visible vascular sulci. In one case (1.04 %) we have observed how the canal presented a complete bone defect (dehiscence), in three (3.12%), presented a very thin wall, which did not exceed 0.2 mm thick. In 12 cases (12.5%) sulci covered the arcuate eminence through which meningeal collateral vessels ran, which determined a concavity of between 0.1 and 0.2 mm, whilst the average thickness of this wall in these cases was 1.2 mm. Of the peculiarities studied, the lack of bone coverage is what produces the dehiscence syndrome of the superior semicircular canal. The canals that had a reduced coverage may be predisposed to breakage and therefore cause pathology in them. On the other hand, the presence of vascular sulci that ran along the apical surface of the canal seems to have no consequences to decrease their thickness.
Idioma: Español
DOI: 10.4067/S0717-95022012000300062
Año: 2012
Publicado en: INTERNATIONAL JOURNAL OF MORPHOLOGY 30, 3 (2012), 1158-1165
ISSN: 0717-9367
Factor impacto JCR: 0.213 (2012)
Categ. JCR: ANATOMY & MORPHOLOGY rank: 20 / 21 = 0.952 (2012) - Q4 - T3
Tipo y forma: Article (Published version)
Área (Departamento): Area Anatom.Embriol.Humana (Dpto. Anatom.Histolog.Humanas)
Área (Departamento): Área Medicina y Cirugía Animal (Dpto. Patología Animal)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes.
Exportado de SIDERAL (2025-10-17-14:09:50)
Visitas y descargas
The aim was to study the peculiarities in apical morphology of the superior semicircular canal are studied at level of the arcuate eminence to obtain application conclusions. We have studied 48 heads from human cadavers (96 temporal bones), with the intention of identifying the presence of thinning or dehiscence in the superior semicircular canal, as well as the existence of vascular sulci of the arcuate eminence, which, traveling along the roof of the canal, may affect its anatomical integrity. The study includes a histological (Martin's Trichome method) and a radiological analysis (Computerized Tomography) of the findings (dehiscences and thinnings), and as well as tomographic study of the canals with visible vascular sulci. In one case (1.04 %) we have observed how the canal presented a complete bone defect (dehiscence), in three (3.12%), presented a very thin wall, which did not exceed 0.2 mm thick. In 12 cases (12.5%) sulci covered the arcuate eminence through which meningeal collateral vessels ran, which determined a concavity of between 0.1 and 0.2 mm, whilst the average thickness of this wall in these cases was 1.2 mm. Of the peculiarities studied, the lack of bone coverage is what produces the dehiscence syndrome of the superior semicircular canal. The canals that had a reduced coverage may be predisposed to breakage and therefore cause pathology in them. On the other hand, the presence of vascular sulci that ran along the apical surface of the canal seems to have no consequences to decrease their thickness.
Idioma: Español
DOI: 10.4067/S0717-95022012000300062
Año: 2012
Publicado en: INTERNATIONAL JOURNAL OF MORPHOLOGY 30, 3 (2012), 1158-1165
ISSN: 0717-9367
Factor impacto JCR: 0.213 (2012)
Categ. JCR: ANATOMY & MORPHOLOGY rank: 20 / 21 = 0.952 (2012) - Q4 - T3
Tipo y forma: Article (Published version)
Área (Departamento): Area Anatom.Embriol.Humana (Dpto. Anatom.Histolog.Humanas)
Área (Departamento): Área Medicina y Cirugía Animal (Dpto. Patología Animal)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes. Exportado de SIDERAL (2025-10-17-14:09:50)
Permalink:
Visitas y descargas
Este artículo se encuentra en las siguientes colecciones:
Articles > Artículos por área > Anatomía y Embriología Humana
Articles > Artículos por área > Medicina y Cirugía Animal
Record created 2025-01-30, last modified 2025-10-17