SIMULATING AN INTERVERTEBRAL LUMBAR SPINE DISC | ||||
| The International Conference on Applied Mechanics and Mechanical Engineering | ||||
| Article 77, Volume 18, 18th International Conference on Applied Mechanics and Mechanical Engineering., April 2018, Page 1-11 PDF (782.6 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/amme.2018.35023 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| H. M. Kamel | ||||
| Egyptian Armed Forces. | ||||
| Abstract | ||||
| ABSTRACT The intervertebral lumbar spine disc (IVD) is a small oval body that connects between two vertebrae. Its degeneration causes lower back pain, which causes economic losses due to treatment and absence from work. Finite element analysis has been used for understanding the complex degeneration process. However, such studies assumed the disc to behave linearly in the elastic region under static loading. In this work, nonlinear FE analysis was used to model the degeneration process as realistically as possible. This was accomplished using an advanced FE capable of simulating the flow of bodily fluid through the living tissues of the disc. This allowed the material properties to change according to time, load and deformation, which occurs in reality. Furthermore, an innovative approach – DOE – was applied to analysis the effect of changing fluid permeability of the annulus fibrosus (AF) and nucleus pulposus (NP), which are the two main parts of the IVD. The analysis revealed that permeability has a strong effect on the value of deformation of the IVD under load. In addition, there is even a clear interaction effect between the permeability of AF and NP on deformation. | ||||
| Keywords | ||||
| lumbar spine; intervertebral; vertebrate; back pain; Finite Element | ||||
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