Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/1533
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dc.contributor.authorÇetin, Engin-
dc.contributor.authorÖzkaya, Mustafa-
dc.contributor.authorGüler, Umit Özgür-
dc.contributor.authorAcaroğlu, Emre-
dc.contributor.authorDemir, Teyfik-
dc.date.accessioned2019-06-26T08:07:05Z
dc.date.available2019-06-26T08:07:05Z
dc.date.issued2015
dc.identifier.citationÇetin, E., Özkaya, M., Güler, Ü. Ö., Acaroğlu, E., & Demir, T. (2015). Evaluation of the effect of fixation angle between polyaxial pedicle screw head and rod on the failure of screw-rod connection. Applied bionics and biomechanics, 2015.en_US
dc.identifier.issn1176-2322
dc.identifier.urihttps://www.hindawi.com/journals/abb/2015/150649/-
dc.identifier.urihttps://hdl.handle.net/20.500.11851/1533-
dc.description.abstractIntroduction. Polyaxial screws had been only tested according to the ASTM standards (when they were perpendicularly positioned to the rod). In this study, effects of the pedicle screws angled fixation to the rod on the mechanical properties of fixation were investigated. Materials and Method. 30 vertically fixed screws and 30 screws fixed with angle were used in the study. Screws were used in three different diameters which were 6.5 mm, 7.0 mm, and 7.5 mm, in equal numbers. Axial pull-out and flexion moment tests were performed. Test results compared with each other using appropriate statistical methods. Results. In pull-out test, vertically fixed screws, in 6.5 mm and 7.0 mm diameter, had significantly higher maximum load values than angled fixed screws with the same diameters (P < 0.01). Additionally, vertically fixed screws, in all diameters, had significantly greater stiffness according to corresponding size fixed with angle (P < 0.005). Conclusion. Fixing the pedicle screw to the rod with angle significantly decreased the pull-out stiffness in all diameters. Similarly, pedicle screw instrumentation fixed with angle decreased the minimum sagittal angle between the rod and the screw in all diameters for flexion moment test but the differences were not significant.en_US
dc.description.sponsorshipThe authors would like to acknowledge the financial support of Turkish Science Foundation (TUBITAK) with the Project no. 111M583 and no. 113S101 for the study. Authors also would like to acknowledge the Osimplant (Bone implant) Ltd. Sti. for the donation of implants.
dc.language.isoenen_US
dc.publisherHindawi Ltden_US
dc.relation.ispartofApplied Bionics And Biomechanicsen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectAdolescent idiopathic scoliosisen_US
dc.subjectPosterior spinal-fusionen_US
dc.subjectFinite-element analysesen_US
dc.subjectPullout strengthen_US
dc.subjectBiomechanical analysisen_US
dc.subjectHook instrumentationen_US
dc.subjectMechanical stabilityen_US
dc.subjectLumbar spineen_US
dc.subjectComplicationsen_US
dc.subjectDeformityen_US
dc.titleEvaluation of the Effect of Fixation Angle between Polyaxial Pedicle Screw Head and Rod on the Failure of Screw-Rod Connectionen_US
dc.typeArticleen_US
dc.departmentFaculties, Faculty of Engineering, Department of Mechanical Engineeringen_US
dc.departmentFakülteler, Mühendislik Fakültesi, Makine Mühendisliği Bölümütr_TR
dc.identifier.startpage1
dc.identifier.endpage9
dc.relation.tubitakTurkish Science Foundation (TUBITAK) [111M583, 113S101]en_US
dc.authorid0000-0001-6352-8302-
dc.identifier.wosWOS:000350437700001en_US
dc.identifier.scopus2-s2.0-84925014448en_US
dc.institutionauthorDemir, Teyfik-
dc.identifier.pmid27019578en_US
dc.identifier.doi10.1155/2015/150649-
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.identifier.scopusqualityQ3-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.grantfulltextnone-
item.fulltextNo Fulltext-
item.openairetypeArticle-
item.cerifentitytypePublications-
item.languageiso639-1en-
Appears in Collections:Makine Mühendisliği Bölümü / Department of Mechanical Engineering
PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
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