| PSO | PCO | LLIF + PSF | P value |
---|---|---|---|---|
VAS of back | Â | Â | Â | Â |
Preoperative | 5.6 ± 1.2 | 5.2 ± 1.1 | 5.6 ± 1.2 | 0.11 |
Postoperative | 3.1 ± 0.8 | 2.8 ± 1.1 | 3.1 ± 0.9 | 0.23 |
1 year follow-up | 2.5 ± 0.5 | 1.8 ± 0.9 | 2.7 ± 0.9 | < 0.05φ |
2 years follow-up | 2.0 ± 0.8 | 1.4 ± 1.0 | 1.1 ± 0.8 | < 0.05φ |
VAS of leg | Â | Â | Â | Â |
Preoperative | 4.1 ± 0.9 | 4.3 ± 0.8 | 4.0 ± 0.8 | 0.34 |
Postoperative | 2.2 ± 0.9 | 2.1 ± 0.9 | 2.1 ± 0.8 | 0.94 |
1 year follow-up | 1.7 ± 0.8 | 1.6 ± 0.7 | 1.7 ± 0.7 | 0.86 |
2 years follow-up | 1.3 ± 1.0 | 0.9 ± 0.8 | 1.0 ± 0.7 | 0.07 |
ODI | Â | Â | Â | Â |
Preoperative | 45.0 ± 7.7 | 42.9 ± 6.0 | 43.8 ± 9.4 | 0.42 |
Postoperative | 20.2 ± 2.9 | 18.9 ± 3.3 | 20.1 ± 2.9 | 0.1 |
1 year follow-up | 18.6 ± 4.2 | 17.3 ± 3.0 | 19.8 ± 3.1 | < 0.05φ |
2 years follow-up | 16.7 ± 2.2 | 16.6 ± 2.1 | 14.7 ± 3.3 | < 0.05φ |
SRS-22 | Â | Â | Â | Â |
Preoperative | 1.8 ± 0.7 | 2.0 ± 0.7 | 2.1 ± 0.7 | 0.13 |
Postoperative | 3.2 ± 0.7 | 3.3 ± 0.6 | 3.4 ± 0.7 | 0.23 |
1 year follow-up | 4.0 ± 0.8 | 4.0 ± 0.7 | 4.1 ± 0.6 | 0.74 |
2 years follow-up | 4.2 ± 0.9 | 4.3 ± 0.7 | 4.7 ± 0.6 | < 0.05φ |
Complications | 9 | 2 | 1 | < 0.05φ |