How to reduce stress on the pedicle screws in thoracic spine? Importance of screw trajectory: A finite element analysis

dc.authorid0000-0002-5700-3515
dc.contributor.authorGüvenç, Yahya
dc.contributor.authorAkyoldaş, Göktuğ
dc.contributor.authorŞentürk, Salim
dc.contributor.authorErbulut, Deniz
dc.contributor.authorYaman, Onur
dc.contributor.authorÖzer, Ali Fahir
dc.date.accessioned10.07.201910:49:13
dc.date.accessioned2019-07-10T19:49:54Z
dc.date.available10.07.201910:49:13
dc.date.available2019-07-10T19:49:54Z
dc.date.issued2019
dc.departmentİstanbul Medipol Üniversitesi, Mühendislik ve Doğa Bilimleri Fakültesi, Biyomedikal Mühendisliği Bölümü
dc.descriptionWOS: 000454722700004
dc.descriptionPubMed ID: 29368324
dc.description.abstractAIM: To investigate the biomechanical comparison of thoracic transpedicular screw trajectories on the sagittal plane. MATERIAL and METHODS: A three-dimensional, non-linear finite element analysis (FEA) model of T8 through T9 was used. Anatomic trajectory (AT) and Straightforward trajectory (ST) models of the transpedicular screws were used in the intact FEA model. The von-Mises stress and range of motion (ROM) of the transpedicular screws were evaluated. RESULTS: The difference in ROM between both techniques was negligible. In lateral bending and axial rotation, FEA showed decrease in stress by 25% and 8%, respectively, when pedicle screws were placed using AT. CONCLUSION: AT decreased the von-Mises stress of the pedicle screws, thereby reducing the rates of screw breakage and fatigue risks. In addition, we believe that AT could protect against screw loosening because the von-Mises stress of the internal fixation was scattered.
dc.description.sponsorshipTurkish Neurosurgical Societyen_US
dc.description.sponsorshipPreparation for publication of this article is partly supported by the Turkish Neurosurgical Society.en_US
dc.identifier.citationGüvenç, Y., Akyoldaş, G., Şentürk, S., Erbulut, D., Yaman, O. ve Özer, A. F. (2019). How to reduce stress on the pedicle screws in thoracic spine? Importance of screw trajectory: A finite element analysis. Turkish Neurosurgery, 29(1), 20-25. https://dx.doi.org/10.5137/1019-5149.JTN.21895-17.2
dc.identifier.doi10.5137/1019-5149.JTN.21895-17.2
dc.identifier.endpage25
dc.identifier.issn1019-5149
dc.identifier.issue1
dc.identifier.scopusqualityQ3
dc.identifier.startpage20
dc.identifier.urihttps://dx.doi.org/10.5137/1019-5149.JTN.21895-17.2
dc.identifier.urihttps://hdl.handle.net/20.500.12511/1811
dc.identifier.volume29
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakTR-Dizin
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherTurkish Neurosurgical Society
dc.relation.ispartofTurkish Neurosurgeryen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectFinite Element
dc.subjectScrew Fixation
dc.subjectSpine
dc.subjectThoracic
dc.subjectTrajectory
dc.titleHow to reduce stress on the pedicle screws in thoracic spine? Importance of screw trajectory: A finite element analysis
dc.typeArticle

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