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Biomechanical comparison of unilateral semi-rigid and dynamic stabilization on ovine vertebrae

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dc.contributor.author Karakoyun, Dursun O.
dc.contributor.author Ozkaya, Mustafa
dc.contributor.author Okutan, Volkan C.
dc.contributor.author Dalgic, Ali
dc.contributor.author Belen, Deniz
dc.contributor.author Demir, Teyfik
dc.date.accessioned 2019-06-26T08:07:04Z
dc.date.available 2019-06-26T08:07:04Z
dc.date.issued 2015-11
dc.identifier.citation Karakoyun, D. O., Özkaya, M., Okutan, V. C., Dalgıç, A., Belen, D., & Demir, T. (2015). Biomechanical comparison of unilateral semi-rigid and dynamic stabilization on ovine vertebrae. Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, 229(11), 778-785. en_US
dc.identifier.issn 0954-4119
dc.identifier.uri https://doi.org/10.1177/0954411915612493
dc.identifier.uri http://hdl.handle.net/20.500.11851/1528
dc.description.abstract Using the unilateral pedicle screw fixation was thought to decrease the stiffness of the fixed segments. Various prospective, randomized studies were performed to determine whether unilateral pedicle screw fixation provides the necessities of bilateral fixation in one- or two-segment lumbar spinal fusion. In this study, four different unilateral pedicle screw fixation systems were evaluated to determine which one best approximated an intact spine with respect to biomechanics and kinematics. The four groups included an intact group, a unilateral facetectomy group with no fixation, a unilateral semi-rigid pedicle screw fixation group with a poly-ether-ether-ketone rod, and a unilateral dynamic pedicle screw fixation group. The bone mineral densities of all specimens were measured and specimens were matched with groups randomly. Flexion, lateral bending, and axial rotation tests were performed to compare the groups. For the flexion, lateral bending, and axial rotation tests, the best biomechanical outcomes were in the control group. The unilateral facetectomy group had the poorest performance and was not stable enough, compared with the control group. The dynamic and semi-rigid groups showed performance closer to that of the control group. The biomechanical responses of these two groups were also in good agreement, showing no significant statistical differences. Based on these test results, it is concluded that the unilateral dynamic and semi-rigid pedicle screw fixations can be used to provide stability to the vertebrae. en_US
dc.description.sponsorship The authors would like to acknowledge Turkish Science Foundation (TUBITAK) with the project #111M583 and #113S101 for the financial support for the study.
dc.language.iso eng en_US
dc.publisher Sage Publications Ltd en_US
dc.rights info:eu-repo/semantics/closedAccess
dc.subject Biomechanical testing en_US
dc.subject analysis en_US
dc.subject biomedical devices en_US
dc.subject orthopedic materials en_US
dc.subject spine biomechanics en_US
dc.subject spinal implants en_US
dc.title Biomechanical comparison of unilateral semi-rigid and dynamic stabilization on ovine vertebrae en_US
dc.type article en_US
dc.relation.journal Proceedings Of The Institution Of Mechanical Engineers Part H-Journal Of Engineering In Medicine en_US
dc.contributor.department TOBB ETU, Faculty of Engineering, Department of Mechanical Engineering en_US
dc.contributor.department TOBB ETÜ, Mühendislik Fakültesi, Makine Mühendisliği Bölümü tr_TR
dc.identifier.volume 229
dc.identifier.issue 11
dc.identifier.startpage 778
dc.identifier.endpage 785
dc.relation.tubitak Turkish Science Foundation (TUBITAK) [111M583, 113S101] en_US
dc.contributor.orcid http://orcid.org/0000-0001-6352-8302
dc.identifier.wos WOS:000363967200003
dc.identifier.scopus 2-s2.0-84945245015
dc.contributor.tobbetuauthor Demir, Teyfik
dc.contributor.YOKid 144123
dc.identifier.doi 10.1177/0954411915612493
dc.relation.publicationcategory Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı tr_TR


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