Table 1
Anatomic characteristics of lumbar pedicle.
Level
Mean transverse diameter (millimetres)
Mean medial an-gulation (degrees)
Mean sagittal (caudal) angulation (degrees)
L1
8
14.5
2.6
L2
7.8
14.2
2.7
L3
10.2
18.5
2.7
L4
13.4
16.6
3.9
L5
18.0
24.6
5.5