The anatomic analysis of the vidian canal and the surrounding structures concerning vidian neurectomy using computed tomography scans.
Braz J Otorhinolaryngol
; 85(2): 136-143, 2019.
Article
em En
| MEDLINE
| ID: mdl-29337014
ABSTRACT
INTRODUCTION:
The type of endoscopic approach chosen for vidian neurectomy can be specified by evaluating the vidian canal and the surrounding sphenoid sinus structures.OBJECTIVE:
The variations and morphometry of the vidian canal were investigated, focusing on the functional correlations between them which are crucial anatomical landmarks for preoperative planning.METHODS:
This study was performed using paranasal multidetector computed tomography images that were obtained with a section thickening of 0.625mm of 250 adults.RESULTS:
The distributions of 500 vidian canal variants were categorized as follows; Type 1, within the sphenoid corpus (55.6%); Type 2, partially protruding into the sphenoid sinus (34.8%); Type 3, within the sphenoid sinus (9.6%). The pneumatization of the pterygoid process is mostly seen in vidian canal Type 2 (72.4%) and Type 3 (95.8%) (p<0.001). The mean distances from the vidian canal to the foramen rotundum and the palatovaginal canal were greater in the vidian canal Type 2 and 3 with the pterygoid process pneumatization (p<0.001). The prevalence of the intrasphenoid septum between the vidian canal and the vomerine crest and lateral attachment which ending on carotid prominence were much higher in vidian canal Type 3 than other types (p<0.001). The mean angle between the posterior end of the middle turbinate and the lateral margin of the anterior opening of the vidian canal was measured as 33.05±7.71°.CONCLUSIONS:
Preoperative radiologic analysis of the vidian canal and the surrounding structures will allow surgeons to choose an appropriate endoscopic approach to ensure predictable postoperative outcomes.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Seio Esfenoidal
/
Denervação
/
Fossa Pterigopalatina
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Tomografia Computadorizada Multidetectores
Tipo de estudo:
Evaluation_studies
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Observational_studies
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Prognostic_studies
Limite:
Adult
/
Female
/
Humans
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Male
/
Middle aged
Idioma:
En
Revista:
Braz J Otorhinolaryngol
Assunto da revista:
OTORRINOLARINGOLOGIA
Ano de publicação:
2019
Tipo de documento:
Article