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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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.

Original languageEnglish
Title of host publicationBIOINFORMATICS 2015 - 6th International Conference on Bioinformatics Models, Methods and Algorithms, Proceedings; Part of 8th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2015
EditorsOscar Pastor, Christine Sinoquet, Ana Fred, Hugo Gamboa, Dirk Elias
PublisherSciTePress
Pages116-120
Number of pages5
ISBN (Electronic)9789897580703
DOIs
Publication statusPublished - 2015
Event6th International Conference on Bioinformatics Models, Methods and Algorithms, BIOINFORMATICS 2015 - Lisbon, Portugal
Duration: 2015 Jan 122015 Jan 15

Publication series

NameBIOINFORMATICS 2015 - 6th International Conference on Bioinformatics Models, Methods and Algorithms, Proceedings; Part of 8th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2015

Other

Other6th International Conference on Bioinformatics Models, Methods and Algorithms, BIOINFORMATICS 2015
CountryPortugal
CityLisbon
Period15/1/1215/1/15

All Science Journal Classification (ASJC) codes

  • Biomedical Engineering
  • Health Informatics
  • Architecture

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    Choi, J., Shin, D. A., & Kim, S. (2015). Biomechanical effects of the geometry of ball-and-socket intervertebral prosthesis on lumbar spine using finite element method. In O. Pastor, C. Sinoquet, A. Fred, H. Gamboa, & D. Elias (Eds.), BIOINFORMATICS 2015 - 6th International Conference on Bioinformatics Models, Methods and Algorithms, Proceedings; Part of 8th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2015 (pp. 116-120). (BIOINFORMATICS 2015 - 6th International Conference on Bioinformatics Models, Methods and Algorithms, Proceedings; Part of 8th International Joint Conference on Biomedical Engineering Systems and Technologies, BIOSTEC 2015). SciTePress. https://doi.org/10.5220/0005213001160120