The anatomic analysis of the vidian canal and the surrounding structures concerning vidian neurectomy using computed tomography scans

Açar, Gülay; Çiçekcibaşı, Aynur Emine; Çukurova, İbrahim; Özen, Kemal Emre; Şeker, Muzaffer; Güler, İbrahim

doi:10.1016/j.bjorl.2017.11.008

Cited by 17 publications

(13 citation statements)

References 14 publications

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“…Excessive pneumatization of the pterygoid process can change the position of the vidian canal and expose it to injury during surgery. It can also lead to foramen rotundum protrusion by changing its position in the sinus (32).…”

Section: Resultsmentioning

confidence: 99%

Anatomical Analysis of Sphenoid Sinus and its Surrounding Structures in Cone-beam Computed Tomography Images: A Retrospective Cross-sectional Study

Foroozandeh

Salemi

khodakarami

et al. 2022

Preprint

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Background Anatomical analysis of the sphenoid sinus is important because of its proximity to vital neurovascular structures. The aim of this study is investigating the anatomy of the SS and its surrounding structures in CBCT images. Methodology: In this retrospective cross-sectional study, 201 cone-beam computed tomography (CBCT) radiographs were analyzed. The analyzed images included the type of SS, protrusion of ICA and optic nerve and foramen rotundum, vidian canal type, the Onodi cell, pneumatization to surrounding bones, the ostium, the septum. The data were analyzed using chi-square and the t-test in SPSS 24 at a significance level of 0.05. Results The tilted septum had the highest frequency (46.3%). Ostium was bilateral in most images (56.2%). The protrusion of the ICA (54.7%) and optic nerve (62.2%) was smooth in most images. Foramen rotundum protrusion and Onodi cell prevalence were 25% and 22.9%, respectively. The postsellar type of sinus had the highest frequency (71.1%). Vidian canal Grade II had the highest frequency (40.3%). Greater wing pneumatization had the highest frequency (51.7%). No statistically significant relationship was found between the optic nerve protrusion and Onodi cell (P-value < 0.05). There was a significant relationship between the pneumatization of the pterygoid process and the protrusion of the vidian canal, and the foramen rotundum protrusion (p-value < 0.001). Conclusion CBCT imaging is very effective in the anatomical analysis of the SS and its surrounding structures. The postsellar type had the highest frequency.Vidian canal Grade II had the highest frequency; greater wing pneumatization was observed in more than half of the images; the most common type of septum was tilted; ostium was bilateral in most cases; the protrusion of the ICA and optic nerve was mostly smooth.

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Section: Resultsmentioning

confidence: 99%

Anatomical Analysis of Sphenoid Sinus and its Surrounding Structures in Cone-beam Computed Tomography Images: A Retrospective Cross-sectional Study

Foroozandeh

Salemi

khodakarami

et al. 2022

Preprint

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“…The comparison of the present data with existing literature shows that type 3 (complete protrusion of Vidian nerve through a stalk) is always reported as the rarest one, although with different percentages (Table 3). On the other side, prevalence of type 1 or type 2 varies among different populations, sometimes within the same country [1,24]. This limited comparison shows that ethnic variability is a key factor in influencing this anatomical variant.…”

mentioning

confidence: 94%

“…With time, several articles have analysed the prevalence of this anatomical variant in their respective populations [1,3,9,10,[13][14][15]20,21,24,25]. However, no study has focused on the possible relationship between Vidian nerve protrusion and volume of sphenoid sinuses so far.…”

Section: Introductionmentioning

confidence: 99%

“…The prevalence of each type of protrusion in the Italian population was given, as well. Surprisingly, in literature several studies give the prevalence of Vidian canal protrusion on CT-scans [1,3,9,10,[13][14][15]20,21,24,25], but none of them explores its possible relationship with sphenoid sinus volume. The comparison of the present data with existing literature shows that type 3 (complete protrusion of Vidian nerve through a stalk) is always reported as the rarest one, although with different percentages (Table 3).…”

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confidence: 99%

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Relation between volume of sphenoid sinuses and protrusion of Vidian nerve: possible applications to Vidian neurectomy

et al. 2020

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Vidian neurectomy is a surgical procedure applied to different pathological conditions, including chronic rhinitis and sphenopalatine neuralgia. The choice of the correct surgical approach depends upon the possible protrusion of Vidian nerve into the sphenoid sinuses. The present study analyses the possible relationship between protrusion of Vidian nerve and volume of sphenoid sinuses. Methods:In total, 320 maxillofacial CT-scans were retrospectively assessed. Subjects equally divided among males and females (age range 18-94 years) were divided into three groups according to the profile of Vidian nerve protrusion; type 1: Vidian nerve inside the sphenoid corpus; type 2: partially protruding into the sphenoid sinus; type 3: entirely protruding into the sphenoid sinus through a stalk. Volume of sphenoid sinuses was extracted through ITK-SNAP free software and automatically calculated.Possible statistically significant differences in prevalence of the three types between males and females were assessed through Chi-squared test (p<0.05). Differences in volume of sphenoid sinuses in subjects included within the three types were assessed through one-way ANOVA test (p<0.05), separately for males and females.Results: Type 2 was the most prevalent (46.6%), followed by type 1 (38.8%) and type 3 (14.7%), without significant differences according to sex (p>0.05). Volume significantly increased passing from type 1 to type 3 both in males (p<0.01) and in females (p<0.01). Conclusions:The results prove the existence of a strict relationship between sphenoid sinuses pneumatization and protrusion of the Vidian canal and give a contribution to the knowledge of this important anatomical variant in endoscopic surgery.

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“… 4 The vidian canal may be completely embedded in the bony mass of sphenoid base, partly protruded from the base, or may be completely protruded in the sinus with a stalk. 5 …”

Section: Introductionmentioning

confidence: 99%

Anatomical relationship of pterygoid process pneumatization and vidian canal

Lakshman

Viveka

Assanar

2022

Brazilian Journal of Otorhinolaryngology

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The anatomic analysis of the vidian canal and the surrounding structures concerning vidian neurectomy using computed tomography scans

Abstract: 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.

Cited by 17 publications

References 14 publications

Anatomical Analysis of Sphenoid Sinus and its Surrounding Structures in Cone-beam Computed Tomography Images: A Retrospective Cross-sectional Study

Anatomical Analysis of Sphenoid Sinus and its Surrounding Structures in Cone-beam Computed Tomography Images: A Retrospective Cross-sectional Study

Relation between volume of sphenoid sinuses and protrusion of Vidian nerve: possible applications to Vidian neurectomy

Anatomical relationship of pterygoid process pneumatization and vidian canal

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