Table 2:
Difference in anteroposterior diameter (mm)
Hypoplasia Group
Control Group
L4-L5
3.0 (range, 2.2–4.1)
0.2 (range, 0.1–0.3)
L5-S1
4.4 (range, 4.2–4.7)
1.0 (range, 0.9–1.0)