Table 4.

Comparison of measurements of coronal Cobb angle, LL, PI, PT, and PI–LL between group 1 and group 2 in preoperative and postoperative state

Preoperative
	Coronal Cobb angle	LL	PI	PT	PI–LL
Group 1	22 ± 1.2	19 ± 5.4	52.3 ± 4.9	30.1 ± 2.3	33.3 ± 2.7
Group 2	30.5 ± 4.5	34.3 ± 4.0*	56.5 ± 2.1	26.3 ± 3.7	22.5 ± 4.0*
Postoperative
	Coronal Cobb angle	LL	PI	PT	PI–LL
Group 1	7.3 ± 2.6	25.1 ± 3.8	N.A.	29.1 ± 4.3	27.1 ± 3.6
Group 2	6.8 ± 1.7	48.5 ± 3.0*	N.A.	20.5 ± 2.9	9.8 ± 1.7*

^*P < 0.05. LL: lumbar lordosis, N.A.: not applicable, PI: pelvic incidence, PT: pelvic tilt.