Study of Different Biomaterials for Artificial Lumbar Disc Prosthesis Using FEM

Abstract:

The purpose of this study was to analyze the behavior of a lumbar spine disc prosthesis with different materials. The study was performed at L4-L5 lumbar motion segment using the finite element method (FEM). A healthy Finite Element (FE) model was used as a reference with which to compare the results of the FE simulations of the artificial discs. The healthy and the artificial FE models were subjected to a combination of 0.5 MPa Compression pre-load and 10Nm of Flexion moment. The artificial FE models were based on Maverick artificial disc, and the three materials proposed for study the artificial disk were Titanium, Ceramic and CrCoMo alloy. The most suitable material for developed the artificial disc was the CoCrMo alloy due to: The von Mises stresses on the bone with which this artificial disc was in contact were reduced as much as possible and also, were very similar to the von Mises stresses obtained in the bones from the healthy disc.

• Periodical: Applied Mechanics and Materials (Volumes 799-800)
• Pages: 483-487
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.799-800.483
• Online since: October 2015
• Authors: Fátima Somovilla Gómez*, Ruben Lostado Lorza, Marina Corral Bobadilla, Luis María López González, José Antonio Gómez Cristobal, Roberto Fernandez Martinez
• Keywords: Artificial Disc, Biomaterials, Ceramic, FEM, Low Back Pain, Spine, Titanium

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