Table 2:
Pedicel Screw Perforation Rates from C3 to C7 by Disease
Disease
Number of Pedicle Screw
Perforation Rates (%)
Grade 1
Grade 2
Grade 3
Grade 3
Grade 2+3
RA
54
3
2
3.4
8.5
DSA
60
2
3
4.6
7.7
CSM
25
9
6
15.0
37.5
Spine tumor
20
4
0
0
16.7
CP
14
4
2
10.0
30.0