Biomechanical Effects of the Geometry of Ball-and-Socket Intervertebral Prosthesis on Lumbar Spine Using Finite Element Method

Jisu Choi, Dong Ah Shin, Sohee Kim

2015

Abstract

The purpose of this study was to analyze the biomechanical effects of three different types of ball-and-socket geometry of a lumbar artificial disc using finite element method. A three dimensional linear finite element (FE) model was developed, and the lumbar artificial disc was inserted at L3-L4 level. The height of implant was fixed and location of implant was also center-fixed. Three different curvatures of ball-and-socket geometry were modeled (radius of curvature: 50.5mm for C1, 26mm for C2, 18.17mm for C3). The biomechanical effects including range of motion (ROM), stress of intervertebral disc, facet contact force and stress on implant were compared among different geometries. As the radius of curvature decreased, the result shows that ROM increased at the surgical level and the stress on implant decreased. The change in stress within intervertebral disc was not significant. The facet contact force at surgical level was maximum with C2 while C1 and C3 had similar facet contact force. We confirmed that the geometry of artificial disc can cause remarkable biomechanical changes at surgical level.

References

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Paper Citation


in Harvard Style

Choi J., Shin D. and Kim S. (2015). Biomechanical Effects of the Geometry of Ball-and-Socket Intervertebral Prosthesis on Lumbar Spine Using Finite Element Method . In Proceedings of the International Conference on Bioinformatics Models, Methods and Algorithms - Volume 1: BIOINFORMATICS, (BIOSTEC 2015) ISBN 978-989-758-070-3, pages 116-120. DOI: 10.5220/0005213001160120


in Bibtex Style

@conference{bioinformatics15,
author={Jisu Choi and Dong Ah Shin and Sohee Kim},
title={Biomechanical Effects of the Geometry of Ball-and-Socket Intervertebral Prosthesis on Lumbar Spine Using Finite Element Method},
booktitle={Proceedings of the International Conference on Bioinformatics Models, Methods and Algorithms - Volume 1: BIOINFORMATICS, (BIOSTEC 2015)},
year={2015},
pages={116-120},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005213001160120},
isbn={978-989-758-070-3},
}


in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Bioinformatics Models, Methods and Algorithms - Volume 1: BIOINFORMATICS, (BIOSTEC 2015)
TI - Biomechanical Effects of the Geometry of Ball-and-Socket Intervertebral Prosthesis on Lumbar Spine Using Finite Element Method
SN - 978-989-758-070-3
AU - Choi J.
AU - Shin D.
AU - Kim S.
PY - 2015
SP - 116
EP - 120
DO - 10.5220/0005213001160120