Table 3. Comparison of pre- and post-operative segmental lordosis at each treated level.

Operative level	Pre-operative	Post-operative	Difference	P value
L1/2 (°)	2.79 (1.95)	5.16 (3.01)	+2.36	0.01
L2/3 (°)	2.77 (1.72)	5.72 (1.96)	+2.94	<0.01
L3/4 (°)	3.34 (2.16)	6.06 (2.39)	+2.72	<0.01
L4/5 (°)	4.56 (3.36)	6.50 (2.73)	+1.94	<0.01

All data represented as mean (standard deviation).