Table 2 Pedicle to spinal cord distance (mm) at the concave and convex sides.
Variable | Concave side | Convex side | P-Value# |
|---|---|---|---|
Mean ± SD (range) | Mean ± SD (range) | ||
4 levels above | 6.3 ± 2.3 (1.0–12.6) | 3.7 ± 1.8 (0.1–9.2) | < 0.001 |
3 levels above | 4.1 ± 2.1 (0.3–10.8) | 5.4 ± 2.1 (0.3–13.4 | 0.005 |
2 levels above | 2.6 ± 1.7 (0.0–8.4) | 7.6 ± 2.1 (1.6–14.3) | < 0.001 |
1 level above | 1.8 ± 1.4 (0.0–5.8) | 9.5 ± 2.0 (2.1–13.8) | < 0.001 |
Apex vertebra | 1.5 ± 1.3 (0.0–4.9) | 9.7 ± 2.1 (1.4–13.7) | < 0.001 |
1 level below | 2.1 ± 1.7 (0.0–6.8) | 9.4 ± 2.1 (2.9–13.5) | < 0.001 |
2 levels below | 3.1 ± 1.9 (0.0–11.9) | 8.4 ± 1.8 (3.1–13.5) | < 0.001 |
3 levels below | 5.4 ± 2.4 (0.3–11.9) | 6.3 ± 1.7 (2.4–11.3) | 0.062 |
4 levels below | 7.2 ± 2.3 (2.0–11.8) | 5.1 ± 1.6 (1.9–8.6) | < 0.001 |
