Table 2.

Differences of radiographic and clinical measurements between group A and B

Measurements	Group A (n = 37)	Group B (n = 18)	P value
Pre-GK (°)	79.4 ± 21.7	74.7 ± 16.3	0.425
Post-GK (°)	35.0 ± 14.4	36.4 ± 18.8	0.769
Correction-GK (°)	43.8 ± 14.2	38.3 ± 14.9	0.198
Pre-LL (°)	8.1 ± 21.4	-7.3 ± 16.6	0.010*
Post-LL (°)	-30.5 ± 14.6	-41.5 ± 18.9	0.020*
Correction-LL (°)	38.5 ± 14.1	34.3 ± 18.8	0.354
Pre-PT (°)	41.0 ± 11.1	34.1 ± 8.4	0.024*
Post-PT (°)	30.9 ± 9.9	23.5 ± 9.7	0.011*
Correction-PT (°)	10.0 ± 10.0	10.7 ± 8.3	0.820
Pre-PI (°)	48.5 ± 13.4	44.9 ± 14.6	0.374
Post-PI (°)	48.9 ± 12.3	45.3 ± 12.2	0.313
Correction-PI (°)	0.5 ± 6.9	0.4 ± 6.5	0.962
Pre-SS (°)	7.5 ± 12.6	10.8 ± 13.1	0.374
Post-SS (°)	18.0 ± 10.2	21.9 ± 14.6	0.256
Correction-SS (°)	10.5 ± 9.2	11.0 ± 9.2	0.837
Pre-PI-LL (°)	56.5 ± 18.5	37.6 ± 20.3	0.001*
Post-PI-LL (°)	18.4 ± 15.2	3.7 ± 11.4	< 0.001*
Correction-PI-LL (°)	38.1 ± 14.0	33.9 ± 20.4	0.376
Pre-TPA (°)	58.6 ± 15.9	42.2 ± 14.6	0.001*
Post-TPA (°)	23.2 ± 7.1	16.3 ± 8.6	< 0.001*
Correction-TPA (°)	25.3 ± 12.0	22.2 ± 13.2	0.399
Pre-SVA (cm)	23.2 ± 7.1	16.3 ± 8.6	0.002*
Post-SVA (cm)	10.9 ± 3.6	3.6 ± 3.1	< 0.001*
Correction-SVA (cm)	12.5 ± 5.9	12.6 ± 9.4	0.959
Pre-ODI score	38.46 ± 20.85	43.15 ± 18.84	0.443
Post-ODI score	25.75 ± 14.74	18.65 ± 10.40	0.087
Correction- ODI score	13.30 ± 23.32	24.50 ± 20.74	0.105
Pre-SRS22 score	2.63 ± 0.69	2.91 ± 0.50	0.277
Post-SRS22 score	3.95 ± 0.49	4.05 ± 0.62	0.067
Correction- SRS22 score	1.32 ± 0.77	1.14 ± 0.68	0.758

Negative number represents lordosis, positive number represents kyphosis

GK Global kyphosis, LL Lumbar lordosis, PT Pelvic tilt, PI Pelvic incidence, SS Sacral slope, PI-LL PI minus LL value, TPA T1 pelvic angle, SVA Sagittal vertical axis, SRS-22 Scoliosis Research Society-22 questionnaire, ODI Oswestry Disability Index

^*The difference between group A and B was statistically significant (P < 0.05)