Efficacy of OLIF combined with pedicle screw internal fixation for lumbar spinal stenosis on spinal canal changes before and after surgery

Table 4 Comparison of changes in preoperative and postoperative sagittal imaging parameters of lumbar lordosis (LL) and sagittal vertical

Parameters	Preope (n = 16)	Postope (n = 16)	p value
LL (°)	34.6 ± 6.7	48.0 ± 5.2	0.000
SVA (mm)	53.6 ± 6.0	24.0 ± 3.3	0.003

LL values were more significantly greater in the postoperative group compared to the preoperative group, with a statistically significant difference (P < 0.01), and SVA values were substantially lower in the postoperative group compared to the preoperative group, with a statistically significant difference (P < 0.01)

ISSN: 1749-799X