Table 1
Spinal level in NAV and FLUORO groups
Spinal level
NAV group
FLUORO group
T10-11
3
0
T11-12
1
2
T12-L1
2
1
L1-2
1
2
L2-3
3
0
L3-4
1
2
L4-5
0
3
Total
11
10