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The fixation strength of the pedicle screw at different vertebral bodies in the no. 3 and 4 cadavers
| VB | Cad 3 (B) (N) | (A) (N) | Cad 4 (B) (N) | (A) (N) |
|---|---|---|---|---|
| L1 | 1,309 | 1,553 | 1,006 | 1,461 |
| L2 | 1,530 | 1,993 | 1,315 | 1,426 |
| L3 | 1,154 | 1,406 | 1,007 | 1,209 |
| L4 | 1,125 | 1,220 | 873 | 1,345 |
| L5 | 623 | 923 | 724 | 1,154 |
B, experimental group; A, control group.
