Table 1.

Overall and segmental sagittal curve assessment

Patients	Overall lordosis			Segmental lordosis
	Pre-op. (°)	Post-op. change (°)	Final follow-up change (°)	Pre-op. (°)	Post-op. change (°)	Final follow-up change (°)
1	34	+6	+4	−1	+3	+3
2	54	0	+1	3	−4	−2
				4	+2	+2
3	34	+4	+5	−1	+4	+5
4	38	+8	+9	−2	+6	+7
5	18	+8	+7	−1	+4	+6
6	20	+7	+8	4	+7	+8
7	32	+5	+6	1	+2	+2
				3	+2	+3
8	50	+2	+4	8	0	0
				3	+5	+6
9	26	+6	+7	−2	+4	+4
10	40	+4	+5	4	+6	+5
11	20	+6	+5	1	+3	+3
				−2	+4	+4
12	38	+8	+8	−2	+5	+6
13	30	+4	+4	2	+3	+5
				2	+4	+3
14	24	+6	+6	−1	+5	+5
15	28	+5	+6	−3	+6	+7
16	31	+6	+7	1	+5	+6
17	35	+7	+9	3	+4	+3
18	41	+6	+5	5	+3	+3
				2	+4	+2
19	37	+4	+6	0	+4	+3
20	38	+6	+6	−1	+3	+3
				2	+5	+7