Table 1 Material properties in current study [11,12,13,14,15]
Materials | Young’s Modulus (Mpa) | Poisson’s Ratio | Density (g/cm3) | Cross Sectional Area (mm2) | Radius (mm) |
|---|---|---|---|---|---|
Cortical bone | 12,000 | 0.3 | 1.91 | ||
Cancellous bone | 100 | 0.2 | 1.87 | ||
Cartilaginous endplate | 23.8 | 0.4 | 1.0003 | ||
Facet cartilage | 24 | 0.4 | |||
Annulus fibrosis | 4.2 | 0.45 | |||
Nucleus pulposus | 1 | 0.4999 | |||
ALL | 7.8(< 12.0%) 20.0(> 12.0%) | 1.00E-06 | 63.7 | 4.5029 | |
PLL | 10.0(< 11.0%) 20.0(> 11.0%) | 1.00E-06 | 20 | 2.5231 | |
CL | 7.5(< 25.0%) 32.9(> 25.0%) | 1.00E-06 | 30 | 3.0902 | |
LF | 15.0(< 6.2%) 19.5(> 6.2%) | 1.00E-06 | 40 | 3.5682 | |
ISL | 10.0(< 14.0%) 11.6(> 14.0%) | 1.00E-06 | 40 | 3.5682 | |
SSL | 8.0(< 20.0%) 15(> 20.0%) | 1.00E-06 | 30 | 3.0902 | |
ITL | 10.0(< 18.0%) 58.7(> 18.0%) | 1.00E-06 | 1.8 | 0.7569 | |
Cage(PEEK) | 3600 | 0.25 | 1.32e − 6 | ||
Screw and Rod(Titanium) | 110,000 | 0.3 | 4.5e − 6 |