Table 2
Incidence of pedicle screw breach among the patients.
Level
Grade 0
Grade 1
Grade 2
L2
5
1
0
L3
35
1
0
L4
135
9
0
L5
162
5
1
S1
52
2
0
Total
389 (95.3%)
18 (4.4%)
1 (0.2%)