Revisiting the Anatomy of the Facial Recess: the Boundaries of the Round Window Exposure

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dc.contributor.authorÖztürk, Kerem
dc.contributor.authorGöde, Sercan
dc.contributor.authorÇelik, Servet
dc.contributor.authorOrhan, Mustafa
dc.contributor.authorBilge, Okan
dc.contributor.authorBilgen, Cem
dc.contributor.authorSaylam, Canan Y
dc.date.accessioned2020-12-01T12:26:40Z
dc.date.available2020-12-01T12:26:40Z
dc.date.issued2016
dc.departmentEge Üniversitesien_US
dc.description.abstractBackground: the exposure of the round window (RW) through the facial recess (FR) is sometimes partial. the anatomic variations that alter RW exposure during co-chleostomy have not been clearly defined to date.Aims: the aim of this study was to assess the best FR position in which to achieve the widest exposure of the RW niche and to define the topographic relationship between two other important anatomical structures, the facial nerve (FN) and the chorda tympani (CT). Study Design: Cadaver study.Methods: Twenty-four temporal bones were included in the study. Anterior and posterior epitympanectomy and posterior tympanotomy were performed after mas-toidectomy. Bone was removed until the FN and CT were skeletonized and the CT branching point was vis-ible. Two pictures were taken. the first was taken when the facial recess was at its widest exposure, while the second was taken when the RW niche was maximally exposed through the facial recess. Various measure-ments were taken.Results: the RW niche was totally visible in 19 tem-poral bones (79.2%). the RW was partially visible in the remaining five bones (20.8%). the unexposed part of the RW lay posteromedial to the FN in these five bones. While the branching point of the CT could be visualized in all cases at the widest exposure of RW, the part of the FN distal to the branching point was hidden in eight subjects (33.3%) under the posterior wall of the external ear canal.Conclusions: the RW niche was totally visible in most of the temporal bones. the RW lay posteromedial to the FN in some cases and total exposure was impossibleen_US
dc.identifier.endpage555en_US
dc.identifier.issn2146-3123
dc.identifier.issn2146-3131
dc.identifier.issue5en_US
dc.identifier.startpage552en_US
dc.identifier.urihttps://app.trdizin.gov.tr//makale/TWpBME5UWTFOUT09
dc.identifier.urihttps://hdl.handle.net/11454/65656
dc.identifier.volume33en_US
dc.indekslendigikaynakTR-Dizinen_US
dc.language.isoenen_US
dc.relation.ispartofBalkan Medical Journalen_US
dc.relation.publicationcategoryMakale - Ulusal Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectCerrahien_US
dc.titleRevisiting the Anatomy of the Facial Recess: the Boundaries of the Round Window Exposureen_US
dc.typeArticleen_US

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