Table 2 The material properties of the finite element model
From: Finite element analysis of biomechanical effects of percutaneous cement discoplasty in scoliosis
Component name | modulus of elasticity (MPa) | Poisson’s ratio |
|---|---|---|
Cortical bone | 12,000 | 0.3 |
Loosen cortical bone | 8040 | 0.3 |
cancellous bone | 100 | 0.3 |
Loose cancellous bone | 33 | 0.3 |
Cartilage | 10 | 0.4 |
Bony endplate | 1000 | 0.4 |
Normal/degenerated Nucleus pulposus | 1.0/8.4 | 0.499/0.4 |
Normal/Degenerate Annulus fibrosus | 4.2/8.4 | 0.3/0.4 |
PMMA | 1600 | 0.33 |