The posterior inferior cerebellar artery and its branches in relation to the cerebellomedullary fissure

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dc.contributor.authorUcerler, H.
dc.contributor.authorSaylam, C.
dc.contributor.authorCagli, S.
dc.contributor.authorOrhan, M.
dc.contributor.authorZilel, M.
dc.date.accessioned2019-10-27T19:54:54Z
dc.date.available2019-10-27T19:54:54Z
dc.date.issued2008
dc.departmentEge Üniversitesien_US
dc.description.abstractThe conventional approach to the fourth ventricle is by splitting the vermis on the suboccipital surface of the cerebellum. By a unilateral transcerebellomedullary fissure approach, it is possible to provide sufficient operative space from cerebral aqueduct to obex without splitting the vermis. This approach needs meticulous dissection of the cerebellomedullary fissure and preservation of the posterior inferior cerebellar artery (PICA) and its branches. The tonsillo-medullary and telovelotonsillar segments of the PICA are the most important vessels encountered in the transcerebellomedullary fissure approach. The PICA was examined under a surgical microscope in a total of 40 specimens by perfusing with a mixture of 10% Indian ink and gelatin. The passing of the tonsillomedullary segment of the PICA through the cerebellomedullary fissure was observed superior to the tonsil in 5%, at the level of the upper pole of the tonsil in 17.5%, at the middle of the tonsil in 37.5% and at the level of the lower pole of the tonsil in 37.5% specimens. When the PICA arose from the lateral medullary (LM) segment of the vertebral artery (VA), a caudal loop was present in 90%, when the PICA originated from the premedullary segment of the VA, the loop was present in 87.5% specimens. When the PICA arose from the basilar artery (BA), the loop was absent, and the tonsillomedullary segment of the PICA showed a straight course (100%). A thorough understanding of the relationship of the branches of the PICA to the cerebellar tonsils are prerequisites for surgery in and around the fourth ventricle.en_US
dc.identifier.doi10.1002/ca.20581en_US
dc.identifier.endpage126en_US
dc.identifier.issn0897-3806
dc.identifier.issn1098-2353
dc.identifier.issue2en_US
dc.identifier.pmid18189278en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage119en_US
dc.identifier.urihttps://doi.org/10.1002/ca.20581
dc.identifier.urihttps://hdl.handle.net/11454/40591
dc.identifier.volume21en_US
dc.identifier.wosWOS:000254421200005en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherWileyen_US
dc.relation.ispartofClinical Anatomyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectposterior inferior cerebellar arteryen_US
dc.subjectcerebellomedullary fissureen_US
dc.subjectcerebellar tonsilen_US
dc.subjectfourth ventricleen_US
dc.subjecttranscerebellomedullary approachen_US
dc.titleThe posterior inferior cerebellar artery and its branches in relation to the cerebellomedullary fissureen_US
dc.typeArticleen_US

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