| Pre-operation | Post-operation | P value |
---|---|---|---|
NRS-Back pain | 6.3 ± 2.8 | 1.6 ± 1.9 |  < 0.001 |
NRS-Leg pain | 7.2 ± 2.3 | 0.8 ± 1.6 |  < 0.001 |
Lumbar lordosis (°) | 31.6 ± 13.8 | 38.4 ± 11.5 |  < 0.001 |
Segmental lordosis (°) | 15.6 ± 9.4 | 20.5 ± 9.5 |  < 0.001 |