Table 1 Material and mechanical properties of the different parts used for the finite element model
Components | Young’s modulus (MPa) | Poisson’s ratio |
|---|---|---|
Cortical bone | 10000.0 | 0.29 |
Cancellous bone | 100.0 | 0.29 |
Endplate | 500.0 | 0.40 |
Posterior structure | 3500.0 | 0.29 |
Annulus fibrosus | 3.4 | 0.40 |
Nucleus pulposus | 1.0 | 0.49 |
Internal fixation devices (titanium alloy) | 145000.0 | 0.30 |