Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/1529
Title: Pullout performance comparison of pedicle screws based on cement application and design parameters
Authors: Tolunay, Tolga
Başgül, Cemile
Demir, Teyfik
Yaman, Mesut E.
Arslan, Arslan Kağan
144123
Keywords: Pedicle screw
pullout strength
dual lead dual cored pedicle screw
cannulated screw
cement augmentation
Issue Date: Nov-2015
Publisher: Sage Publications Ltd
Source: Tolunay, T., Başgül, C., Demir, T., Yaman, M. E., & Arslan, A. K. (2015). Pullout performance comparison of pedicle screws based on cement application and design parameters. Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine, 229(11), 786-793.
Abstract: Pedicle screws are the main fixation devices for certain surgeries. Pedicle screw loosening is a common problem especially for osteoporotic incidents. Cannulated screws with cement augmentation are widely used for that kind of cases. Dual lead dual cored pedicle screw has already given promising pullout values without augmentation. This study concentrates on the usage of dual lead dual core with cement augmentation as an alternative to cannulated and standard pedicle screws with cement augmentation. Five groups (dual lead dual core, normal pedicle screw and cannulated pedicle screw with augmentation, normal pedicle screw, dual lead dual cored pedicle screw) were designed for this study. Healthy bovine vertebrae and synthetic polyurethane foams (grade 20) were used as embedding test medium. Test samples were prepared in accordance with surgical guidelines and ASTM F543 standard testing protocols. Pullout tests were conducted with Instron 3300 testing frame. Load versus displacement values were recorded and maximum pullout loads were stated. The dual lead dual cored pedicle screw with poly-methyl methacrylate augmentation exhibited the highest pullout values, while dual lead dual cored pedicle screw demonstrated similar pullout strength as cannulated pedicle screw and normal pedicle screw with poly-methyl methacrylate augmentation. The dual lead dual cored pedicle screw with poly-methyl methacrylate augmentation can be used for osteoporotic and/or severe osteoporotic patients according to its promising results on animal cadaver and synthetic foams.
URI: https://www.ncbi.nlm.nih.gov/pubmed/26503840
https://hdl.handle.net/20.500.11851/1529
ISSN: 0954-4119
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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