Calculation of an Optic Nerve Injury Risk Profile Before Sphenoid Sinus Surgery

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dc.contributor.authorCetinkaya, Erdem Atalay
dc.contributor.authorKoc, Koray
dc.contributor.authorKucuk, Mehmet Fatih
dc.contributor.authorKoc, Pinar
dc.contributor.authorMuluk, Nuray Bayar
dc.contributor.authorCingi, Cemal
dc.date.accessioned2020-06-25T18:23:35Z
dc.date.available2020-06-25T18:23:35Z
dc.date.issued2017
dc.departmentKırıkkale Üniversitesi
dc.descriptionKucuk, Mehmet Fatih/0000-0002-2548-7869
dc.description.abstractObjectives: Our objective was to analyze variations in the optic nerve (ON) course and surrounding structures in an effort to construct an optic nerve injury risk profile before endoscopic intranasal sphenoidal, or endoscopic endonasal transphenoidal, skull-base surgery, and eventually to construct and formulate a common classification by combining the known classes. The authors used computed tomography (CT) toward this end. Methods: The authors retrospectively reviewed 200 consecutive CT scans (400 sides) of the paranasal sinuses. The pneumatization of the anterior clinoid process, the relationships of the ONs to the sphenoidal sinuses, and ON dehiscence were evaluated. The authors then created a formula by which risk profiles can be constructed for patients for whom sphenoid or parasellar surgery is planned. Results: Pneumatization of the anterior clinoid process was evident in 28.25%. Dehiscence of the bony wall of the ON was evident in 9.5%. The ON course lay adjacent to the sphenoidal sinus, causing sinus wall indentation, in 23%. Cumulative optic nerve injury risk scoring showed that, radiologically, surgery on 8.5% and 1.5% of sphenoid sinuses described here carried severe or critical risk of ON injury, respectively. Conclusions: Head-and-neck surgeons and neurosurgeons should be aware of variations in ON course. The authors composed an optic nerve injury risk classification category based on the sum of individual weights of each of these classes. Reductions in ON injuries require careful evaluation of potential variant anatomies. Preoperative CT scans must be meticulously reviewed to avoid ON injury.en_US
dc.identifier.citationclosedAccessen_US
dc.identifier.doi10.1097/SCS.0000000000003239
dc.identifier.endpageE78en_US
dc.identifier.issn1049-2275
dc.identifier.issn1536-3732
dc.identifier.issue1en_US
dc.identifier.pmid27906848
dc.identifier.scopus2-s2.0-85000936531
dc.identifier.scopusqualityQ3
dc.identifier.startpageE75en_US
dc.identifier.urihttps://doi.org/10.1097/SCS.0000000000003239
dc.identifier.urihttps://hdl.handle.net/20.500.12587/7142
dc.identifier.volume28en_US
dc.identifier.wosWOS:000405399600003
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherLippincott Williams & Wilkinsen_US
dc.relation.ispartofJournal Of Craniofacial Surgery
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAnterior clinoid processen_US
dc.subjectendoscopic sphenoid surgeryen_US
dc.subjectoptic nerveen_US
dc.subjectsphenoidal sinusen_US
dc.titleCalculation of an Optic Nerve Injury Risk Profile Before Sphenoid Sinus Surgeryen_US
dc.typeArticle

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