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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 |
