| Ant-post diameter of SC (mm) | Interpedicular distance SC | Angle pedicle axis sup plateau of VB (degree) | ||||||
| M | W | Ave | M | W | Ave | M | W | Ave |
L1 | 15.8 | 16.1 | 15.9 | 22.2 | 20.8 | 21.5 | 14.0 | 14.5 | 14.2 |
L2 | 14.9 | 15.4 | 15.1 | 22.5 | 21.1 | 21.8 | 12.3 | 13.4 | 13.1 |
L3 | 14.3 | 14.8 | 14.5 | 23.3 | 22.1 | 22.7 | 11.7 | 12.0 | 11.8 |
L4 | 14.7 | 14.9 | 14.8 | 24.6 | 23.3 | 24.0 | 10.2 | 10.3 | 10.3 |
L5 | 15.6 | 15.4 | 15.5 | 28.7 | 27.6 | 28.2 | 8.7 | 8.9 | 8.8 |