Computed tomography evaluation of the morphometry and variations of the infraorbital canal relating to endoscopic surgery

dc.contributor.authorAçar, Gülay
dc.contributor.authorÖzen, Kemal Emre
dc.contributor.authorGüler, İbrahim
dc.contributor.authorBüyükmumcu, Mustafa
dc.date.accessioned2020-03-26T19:53:13Z
dc.date.available2020-03-26T19:53:13Z
dc.date.issued2018
dc.departmentSelçuk Üniversitesi, Tıp Fakültesi, Dahili Tıp Bilimleri Bölümü.en_US
dc.description.abstractIntroduction: The course of the infraorbital canal may leave the infraorbital nerve susceptible to injury during reconstructive and endoscopic surgery, particularly when surgically manipulating the roof of the maxillary sinus. Objective: We investigated both the morphometry and variations of the infraorbital canal with the aim to show the relationship between them relative to endoscopic approaches. Methods: This retrospective study was performed on paranasal multidetector computed tomography images of 200 patients. Results The infraorbital canal corpus types were categorized as Type 1: within the maxillary bony roof (55.3%), Type 2: partially protruding into maxillary sinus (26.7%), Type 3: within the maxillary sinus (9.5%), Type 4: located anatomically at the outer limit of the zygomatic recess of the maxillary bone (8.5%). The internal angulation and the length of the infraorbital canal, the infraorbital foramen entry angles and the distances related to the infraorbital foramen localization were measured and their relationships with the infraorbital canal variations were analyzed. We reported that the internal angulations in both sagittal and axial sections were mostly found in infraorbital canal Type 1 and 4 (69.2%, 64.7%) but, there were commonly no angulation in Type 3 (68.4%) (p < 0.001). The length of the infraorbital canal and the distances from the infraorbital foramen to the infraorbital rim and piriform aperture was measured as the longest in Type 3 and the smallest in Type 1 (p < 0.001). The sagittal infraorbital foramen entry angles were detected significantly smaller in Type 3 and larger in Type 1 than that in other types (p = 0.003). The maxillary sinus septa and the Haller cell were observed in 28% and 16% of the images, respectively. Conclusion: Precise knowledge of the infraorbital canal corpus types and relationship with the morphometry allow surgeons to choose an appropriate surgical approach to avoid iatrogenic infraorbital nerve injury. (C) 2017 Associacao Brasileira de Otorrinolaringologia e Cirurgia Cervico-Facial. Published by Elsevier Editora Ltda.en_US
dc.identifier.citationAçar, G., Özen, K. E., Güler, İ., Büyükmumcu, M. (2018). Computed Tomography Evaluation of the Morphometry and Variations of the Infraorbital Canal Relating to Endoscopic Surgery. Brazilian Journal of Otorhinolaryngology, 84(6), 713-721.
dc.identifier.doi10.1016/j.bjorl.2017.08.009en_US
dc.identifier.endpage721en_US
dc.identifier.issn1808-8694en_US
dc.identifier.issn1808-8686en_US
dc.identifier.issue6en_US
dc.identifier.pmid28943288en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage713en_US
dc.identifier.urihttps://dx.doi.org/10.1016/j.bjorl.2017.08.009
dc.identifier.urihttps://hdl.handle.net/20.500.12395/36440
dc.identifier.volume84en_US
dc.identifier.wosWOS:000450006500008en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.institutionauthorGüler, İbrahim
dc.language.isopten_US
dc.publisherASSOC BRASILEIRA OTORRINOLARINGOLOGIA & CIRURGIA CERVICOFACIALen_US
dc.relation.ispartofBRAZILIAN JOURNAL OF OTORHINOLARYNGOLOGYen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectEndoscopic sinus surgeryen_US
dc.subjectInfraorbital canalen_US
dc.subjectInfraorbital canal corpus typesen_US
dc.subjectInfraorbital foramenen_US
dc.subjectMultidetector computed tomographyen_US
dc.titleComputed tomography evaluation of the morphometry and variations of the infraorbital canal relating to endoscopic surgeryen_US
dc.typeArticleen_US

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