Table 3. Comparison of the lumbar VAS scores between the 2 groups.
| Items | N (%) | Preoperative | 7 days post operation |
|---|---|---|---|
| Group A | 103 (48.36) | 5.74±1.41 | 3.50±1.20 |
| Group B | 110 (51.64) | 5.48±1.56 | 3.12±1.28 |
| t | 1.255 | 2.226 | |
| P value | 0.211 | 0.027 |
Data are represented as mean ± SD or n (%). Group A: underwent conventional C-arm fluoroscopy-assisted system alone intervertebral foraminoscopic surgery; Group B: underwent 3D CT navigation-assisted intervertebral foraminoscopic surgery. VAS, visual analogue scale; t, t-test; SD, standard deviation; 3D CT, 3-dimensional computed tomography.