Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/6494
Title: Design and performance of spinal fixation pedicle screw system
Authors: Demir, Teyfik
Camuşcu, Necip
Keywords: Pedicle screw
spinal fixation
fatigue life and implant
Issue Date: 2012
Publisher: Sage Publications Ltd
Abstract: Pedicle screw-rod bilateral constructions are extensively used in spinal fixation. In this study, the common cause for failure of bilateral constructions has been determined to be the high stress concentration at the rod-setscrew interface. In order to overcome this problem, a design modification has been made by using a supplementary part (shoe) between rod and setscrew. Performance comparison of the conventional design and modified design has been done by conducting static tests. Design modification has resulted in 11%, 27%, 42% and 31% improvements in axial gripping capacity, torsional gripping capacity, flexion/extension resistance and subassembly compression strength, respectively. The most outstanding achievement has been obtained in the fatigue life, which was extended by almost three times.
URI: https://doi.org/10.1177/0954411911427351
https://hdl.handle.net/20.500.11851/6494
ISSN: 0954-4119
2041-3033
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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