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The anatomic analysis of the vidian canal and the surrounding structures concerning vidian neurectomy using computed tomography scans / Avaliação anatômica do canal vidiano e estruturas adjacentes por tomografia computadorizada para a neurectomia do vidiano
Açar, Gülay; Çiçekcibaşı, Aynur Emine; Çukurova, İbrahim; Özen, Kemal Emre; Şeker, Muzaffer; Güler, İbrahim.
  • Açar, Gülay; Necmettin Erbakan University. Meram Faculty of Medicine. Department of Anatomy. Konya. TR
  • Çiçekcibaşı, Aynur Emine; Necmettin Erbakan University. Meram Faculty of Medicine. Department of Anatomy. Konya. TR
  • Çukurova, İbrahim; Health Sciences University. Izmir Tepecik Trainig and Research Hospital. Department of Otolaryngology-Head and Neck Surgery. Izmir. TR
  • Özen, Kemal Emre; Katip Çelebi University. Faculty of Medicine. Department of Anatomy. Izmir. TR
  • Şeker, Muzaffer; Necmettin Erbakan University. Meram Faculty of Medicine. Department of Anatomy. Konya. TR
  • Güler, İbrahim; Selcuk University. Faculty of Medicine. Department of Radiology. Konya. TR
Braz. j. otorhinolaryngol. (Impr.) ; 85(2): 136-143, Mar.-Apr. 2019. tab, graf
Article in English | LILACS | ID: biblio-1001548
ABSTRACT
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 0.625 mm 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.
RESUMO
Resumo

Introdução:

O tipo de abordagem endoscópica para a neurectomia do vidiano pode ser definido pela avaliação do canal do vidiano e das estruturas adjacentes aos seios esfenoidais.

Objetivo:

Investigar as variações e a morfometria do canal vidiano com enfoque nas suas correlações funcionais, pois são parâmetros anatômicos cruciais para o planejamento pré-operatório.

Método:

Esse estudo foi realizado utilizando-se imagens de tomografia computadorizada multidetectores dos seios paranasais com espessura de corte de 0,625 mm obtidas de 250 indivíduos adultos.

Resultados:

A distribuição das 500 variantes do canal vidiano foi categorizada da seguinte forma Tipo 1, dentro do corpo ósseo esfenoidal (55,6%); Tipo 2, protrusão parcial no interior do seio esfenoidal (34,8%); Tipo 3, no interior do seio esfenoidal (9,6%). A pneumatização do processo pterigoide foi observada principalmente no canal vidiano Tipo 2 (72,4%) e Tipo 3 (95,8%) (p < 0,001). As distâncias médias do canal vidiano até o forame redondo e o canal palatovaginal foram maiores no canal vidiano do Tipo 2 e 3, com a pneumatização do processo pterigoide (p < 0,001). A presença do septo intraesfenoidal entre o canal vidiano e a crista vomeriana e a extensão lateral, que termina na proeminência da carótida, foi muito maior no canal vidiano Tipo 3 do que nos outros tipos (p < 0,001). A angulação média entre a cauda da concha média e a margem lateral da abertura anterior do canal vidiano foi de 33,05° ± 7,71°.

Conclusões:

A análise radiológica pré-operatória do canal do vidiano e das estruturas circunjacentes permitem ao cirurgião escolher uma abordagem endoscópica apropriada e prever resultados pós-operatórios.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Sphenoid Sinus / Denervation / Pterygopalatine Fossa / Multidetector Computed Tomography Type of study: Evaluation studies / Observational study / Prognostic study / Risk factors Limits: Adult / Female / Humans / Male Language: English Journal: Braz. j. otorhinolaryngol. (Impr.) Journal subject: Otolaryngology Year: 2019 Type: Article Affiliation country: Turkey Institution/Affiliation country: Health Sciences University/TR / Katip Çelebi University/TR / Necmettin Erbakan University/TR / Selcuk University/TR

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Full text: Available Index: LILACS (Americas) Main subject: Sphenoid Sinus / Denervation / Pterygopalatine Fossa / Multidetector Computed Tomography Type of study: Evaluation studies / Observational study / Prognostic study / Risk factors Limits: Adult / Female / Humans / Male Language: English Journal: Braz. j. otorhinolaryngol. (Impr.) Journal subject: Otolaryngology Year: 2019 Type: Article Affiliation country: Turkey Institution/Affiliation country: Health Sciences University/TR / Katip Çelebi University/TR / Necmettin Erbakan University/TR / Selcuk University/TR