| PKP (n = 111) | PMCP (n = 109) | PSFV (n = 117) | F | P |
---|---|---|---|---|---|
VAS | Â | Â | Â | Â | Â |
 Preoperative | 7.04 ± 1.15 | 7.04 ± 1.29 | 7.10 ± 1.37 | 0.100 | 0.904 |
 Postoperative | 2.27 ± 1.04 | 2.17 ± 0.98 | 3.19 ± 1.06 | 34.578 | < 0.001 |
 2 years postoperative | 1.87 ± 0.84 | 1.76 ± 0.83 | 1.71 ± 0.95 | 1.014 | 0.364 |
ODI | Â | Â | Â | Â | Â |
 Preoperative | 67.11 ± 13.49 | 67.26 ± 12.79 | 67.36 ± 13.11 | 0.010 | 0.990 |
 Postoperative | 22.00 ± 11.20 | 21.01 ± 7.90 | 33.81 ± 8.81 | 65.973 | < 0.001 |
2 years postoperative | 16.18 ± 9.11 | 16.40 ± 7.29 | 15.47 ± 7.65 | 0.416 | 0.660 |