Analysis of deformation and stress distribution of the poly-axial pedicle screw

S. M. Kim; I. C. Yang; D. K. Kim; H. S. Bae

doi:10.4028/www.scientific.net/kem.381-382.591

Analysis of deformation and stress distribution of the poly-axial pedicle screw

S. M. Kim, I. C. Yang, D. K. Kim, H. S. Bae

Department of Rehabilitation Medicine

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	591-594
Number of pages	4
Journal	Key Engineering Materials
Volume	381-382
DOIs	https://doi.org/10.4028/www.scientific.net/kem.381-382.591
State	Published - 2008

Bibliographical note

Funding Information:
We are grateful to M. Forestier, E. Chezy, and C. Ferniot for their technical assistance. This work was supported by grants from INSERM (CRI 9601) and from l’ARC.

Keywords

Contact
FEM
Spinal pedicle screw
Tightening torque

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Cite this

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title = "Analysis of deformation and stress distribution of the poly-axial pedicle screw",

abstract = "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.",

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AU - Yang, I. C.

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AU - Bae, H. S.

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Y1 - 2008

N2 - 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.

AB - 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.

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KW - Tightening torque

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Analysis of deformation and stress distribution of the poly-axial pedicle screw

Abstract

Bibliographical note

Keywords

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