Table 2.
Clinical efficacy index at 6 months after PLIF operation between group A and group B (mean ± SD).
| Index | Group A | Group B | P value |
|---|---|---|---|
| JOA score | |||
| Pre- | 10.93 ± 2.98 | 11.40 ± 2.64 | 0.654 |
| Post- | 23.0 ± 3.29## | 13.13 ± 2.55 | <0.001∗∗ |
| IR (%) | 63.44 ± 26.92 | 9.73 ± 6.56 | <0.0001∗∗ |
| ODI (%) | |||
| Pre- | 41.86 ± 8.60 | 37.73 ± 5.06 | 0.119 |
| Post- | 27.46 ± 6.56## | 33.71 ± 5.85 | 0.010∗ |
PLIF: posterior lumbar interbody fusion; JOA: Japanese Orthopedic Association; IR: improvement rate; ODI: Oswestry disability index; Pre-: before PLIF operation; Post-: 6 months after PLIF surgery; compared with the other groups, ∗P < 0.05; ∗∗P < 0.01. Compared with preoperative level, ##P < 0.01.