Table 3 Categorized pedicle to spinal cord distance at the concave and convex side.
0–2 mm | 2–4 mm | 4–6 mm | > 6 mm | N/A | |
|---|---|---|---|---|---|
N (%) | N (%) | N (%) | N (%) | N (%) | |
Concave side | |||||
4 levels above | 2 (2.7) | 6 (8.2) | 31 (42.5) | 33 (45.2) | 1 (1.4) |
3 levels above | 11 (15.1) | 27 (37.0) | 24 (32.9) | 10 (13.7) | 1 (1.4) |
2 levels above | 33 (45.2) | 23 (31.5) | 14 (19.2) | 2 (2.7) | 1 (1.4) |
1 level above | 49 (67.1) | 18 (24.7) | 6 (8.2) | 0 (0.0) | 0 (0.0) |
Apex | 51 (69.9) | 18 (24.7) | 4 (5.5) | 0 (0.0) | 0 (0.0) |
1 level below | 40 (54.8) | 22 (30.1) | 8 (11.0) | 2 (2.7) | 1 (1.4) |
2 levels below | 20 (27.4) | 29 (39.7) | 14 (19.2) | 3 (4.1) | 7 (9.6) |
3 level below | 5 (6.8) | 10 (13.7) | 22 (30.1) | 21 (28.8) | 5 (6.8) |
4 levels below | 0 (0.0) | 3 (4.1) | 7 (9.6) | 24 (32.9) | 39 (53.4) |
Convex side | |||||
4 levels above | 14 (19.2) | 31 (42.5) | 21 (28.8) | 6 (8.2) | 1 (1.4) |
3 levels above | 4 (5.5) | 12 (16.4) | 26 (35.6) | 30 (41.1) | 1 (1.4) |
2 levels above | 1 (1.4) | 2 (2.7) | 10 (13.7) | 59 (80.8) | 1 (1.4) |
1 level above | 0 (0.0) | 1 (1.4) | 2 (2.7) | 70 (95.9) | 0 (0.0) |
Apex | 1 (1.4) | 0 (0.0) | 2 (2.7) | 70 (95.9) | 0 (0.0) |
1 level below | 0 (0.0) | 1 (1.4) | 5 (6.8) | 66 (90.4) | 1 (1.4) |
2 levels below | 0 (0.0) | 2 (2.7) | 2 (2.7) | 62 (84.9) | 7 (10.3) |
3 level below | 0 (0.0) | 6 (8.2) | 20 (27.4) | 32 (43.8) | 5 (6.8) |
4 levels below | 1 (1.4) | 6 (8.2) | 15 (20.5) | 12 (16.4) | 39 (53.4) |
