Table 1 Material properties of the implants used in the finite element model
From: Finite element analysis after rod fracture of the spinal hybrid elastic rod system
Dynamic stabilization system | ||
|---|---|---|
Titanium alloy pedicle screws | Young’s modulus (MPa) | 110,000 |
Poisson’s ratio | 0.28 | |
PCU shell | Tensile yield | 50% |
Young’s modulus (MPa) | 68.4 | |
Poisson’s ratio | 0.4 | |
Yield strength (MPa) | 34.2 | |
Area (mm2) | 101.13 | |
Nitinol stick | Young’s modulus (MPa) | 47,000 |
Poisson’s ratio | 0.3 | |