From: Biomechanical response of lumbar facet joints under follower preload: a finite element study
Components name | Young’s modulus (MPa) | Poisson’s ratio | Element type | Element no. |
---|---|---|---|---|
Cortical bone | 14000 | 0.30 | Hex | 2585 |
Cancellous bone | 100 | 0.2 | Tetra | 129931 |
Posterior elements | 3500 | 0.25 | Tetra | 250978 |
Endplate | 10000 | 0.25 | Hex | 4921 |
Sacrum | 5000 | 0.2 | Tetra | 200295 |
Facet cartilage | Neo-Hookean, C10 = 2 | Hex | 7293 | |
Annulus | Mooney–Rivlin, C1 = 0.18, C2 = 0.045 | Hex | 6000 | |
Nucleus pulpous | Mooney–Rivlin, C1 = 0.12, C2 = 0.03 | Hex | 7200 | |
Fiber | Calibrated stress–strain curves | Spring | 14400 | |
Ligament | Calibrated deflection–force curves | Spring | 234 |