Analysis of Deformation and Stress Distribution of the Poly-Axial Pedicle Screw

Abstract:

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The effect of design features of an internal spinal fixator under loading is critical to understanding of interaction between fixator and instrumented spine. In this study, we performed finite element analysis for spinal pedicle screw installed in the lumbar spine. The purpose of this study is to model and simulate the newly designed spinal pedicle screw. The deformation and stress of the screw are analyzed for the tightening process and loading process simulating the condition when it is installed in the human body as described in the ASTM F1717 procedure. We expected this study is to derive reliable results for developing a new model by analysis of design variables and fatigue behavior.

Info:

Periodical:

Key Engineering Materials (Volumes 381-382)

Edited by:

Wei Gao, Yasuhiro Takaya, Yongsheng Gao and Michael Krystek

Pages:

591-594

DOI:

10.4028/www.scientific.net/KEM.381-382.591

Citation:

S. M. Kim et al., "Analysis of Deformation and Stress Distribution of the Poly-Axial Pedicle Screw", Key Engineering Materials, Vols. 381-382, pp. 591-594, 2008

Online since:

June 2008

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Price:

$35.00

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