TY - GEN
T1 - Biomechanical effects of the geometry of ball-and-socket intervertebral prosthesis on lumbar spine using finite element method
AU - Choi, Jisu
AU - Shin, Dong Ah
AU - Kim, Sohee
PY - 2015
Y1 - 2015
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84938891168&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84938891168&partnerID=8YFLogxK
U2 - 10.5220/0005213001160120
DO - 10.5220/0005213001160120
M3 - Conference contribution
AN - SCOPUS:84938891168
T3 - 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
SP - 116
EP - 120
BT - 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
A2 - Pastor, Oscar
A2 - Sinoquet, Christine
A2 - Fred, Ana
A2 - Gamboa, Hugo
A2 - Elias, Dirk
PB - SciTePress
T2 - 6th International Conference on Bioinformatics Models, Methods and Algorithms, BIOINFORMATICS 2015
Y2 - 12 January 2015 through 15 January 2015
ER -