Transmastoid Decompression of Labyrinthine-Meatal Segment of the Facial Nerve: A Comparative Radio-Anatomic Study

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dc.contributor.authorKeles, Bahar
dc.contributor.authorEmlik, Dilek
dc.contributor.authorUyar, Yavuz
dc.contributor.authorCicekcibasi, Aynur Emine
dc.contributor.authorOzturk, Kayhan
dc.date.accessioned2020-03-26T17:41:00Z
dc.date.available2020-03-26T17:41:00Z
dc.date.issued2009
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractObjective: To evaluate the routes for approaching to labyrinthine-meatal segment of the facial nerve (FN) via transmastoid approach by drilling the ampullar ends of the lateral semicircular canal (LSC). Materials and Methods: Ten temporal bones of adult cadavers underwent high-resolution computed tomography (HRCT). Among them in 6 temporal bones the FN was decompressed under operating microscope via transmastoid approach by drilling the ampullar ends of the LSC. Within the remaining four of temporal bones the ampullary ends of the LSC were preserved. All temporal bones were re-evaluated by HRCT scans following the dissection. Distances between labyrinthine-meatal segment and surrounding anatomical landmarks were measured through the HRCT scans. Results: The mean distances from labyrinthine-meatal segment to the midpoint of the basal turn of the cochlea, LSC and vestibule were 9.5 +/- 0.6 mm (range 8.1-10.4), 10.1 +/- 0.2 mm (range 8.5-11.9 mm), 2.6 +/- 0.4 mm (range 1.9-3.2 mm), respectively. The mean distance of remaining bony part of fallopian canal near the meatus was determined as 0.57 +/- 0.3 mm in the temporal bones drilled from the ampullary ends of the LSC and 2.07 +/- 0.5 mm in the temporal bones preserved from ampullary ends of the LSC. This difference was significant (p<0.05). Conclusions: The results showed that the labyrinthine-meatal segment of the FN could be adequately accessed via transmastoid approach by skletonizing the ampullary end of the LSC. This approach may be used as an alternative technique in the decompression of labyrinthine-meatal segment of the FN.en_US
dc.identifier.endpage176en_US
dc.identifier.issn1308-7649en_US
dc.identifier.issn2148-3817en_US
dc.identifier.issue2en_US
dc.identifier.startpage171en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12395/23993
dc.identifier.volume5en_US
dc.identifier.wosWOS:000267954400007en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.language.isoenen_US
dc.publisherAVESen_US
dc.relation.ispartofJOURNAL OF INTERNATIONAL ADVANCED OTOLOGYen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.selcuk20240510_oaigen_US
dc.titleTransmastoid Decompression of Labyrinthine-Meatal Segment of the Facial Nerve: A Comparative Radio-Anatomic Studyen_US
dc.typeArticleen_US

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