|  | More osteophytes (n = 47) | Less osteophytes (n = 63) | ||||
---|---|---|---|---|---|---|---|
 |  | SV (n = 18) | MV (n = 29) | p-value | SV (n = 22) | MV  41) | p-value |
ROM | preoperative (degree) | 99.4 ± 20.9 | 104.0 ± 22.7 | 0.49 | 113.9 ± 20.0 | 115.9 ± 19.5 | 0.71 |
 | postoperative (degree) | 123.1 ± 13.6 | 120.7 ± 13.5 | 0.56 | 122.7 ± 12.8 | 122.2 ± 12.4 | 0.87 |
 | angle difference (degree) | 23.1 ± 19.3 | 16.8 ± 17.8 | 0.27 | 8.9 ± 16.1 | 5.7 ± 20.0 | 0.5 |
KS | preoperative | 39.7 ± 11.9 | 40.5 ± 15.3 | 0.85 | 48.5 ± 13.9 | 50.3 ± 14.4 | 0.65 |
 | postoperative | 95.4 ± 6.8 | 97.5 ± 3.5 | 0.25 | 97.6 ± 3.4 | 96 ± 5.4 | 0.17 |
 | improvement rate (%) | 92.5 ± 10.8 | 96.0 ± 5.78 | 0.23 | 95.7 ± 5.3 | 86.3 ± 23.8 | 0.03* |
FS | preoperative | 31.8 ± 21.5 | 45.2 ± 13.2 | 0.03* | 45.1 ± 19.3 | 41.6 ± 18.4 | 0.5 |
 | postoperative | 70.8 ± 23.3 | 80 ± 13.7 | 0.14 | 81.4 ± 18.1 | 74.3 ± 16.4 | 0.14 |
 | improvement rate (%) | 59.0 ± 26.3 | 65.5 ± 23.4 | 0.41 | 72.3 ± 26.1 | 49.4 ± 32.7 | 0.005* |
KOOS- | preoperative | 45.4 ± 18.7 | 44.8 ± 21.7 | 0.92 | 48.7 ± 21.8 | 47.7 ± 15.1 | 0.86 |
Symptom | postoperative | 81.1 ± 15.4 | 80.9 ± 15.3 | 0.98 | 84.5 ± 11.2 | 77.9 ± 17.6 | 0.07 |
 | improvement rate (%) | 63.4 ± 28.9 | 65.3 ± 27.0 | 0.83 | 63.1 ± 31.2 | 53.9 ± 35.1 | 0.31 |
KOOS- | preoperative | 45.4 ± 15.9 | 41.3 ± 20.7 | 0.45 | 40.5 ± 18.8 | 39.7 ± 17.5 | 0.89 |
Pain | postoperative | 86.2 ± 17.4 | 88.4 ± 11.5 | 0.64 | 90.6 ± 8.2 | 83.3 ± 14.6 | 0.01* |
 | improvement rate (%) | 76.9 ± 29.5 | 80.3 ± 18.7 | 0.67 | 81.8 ± 18.0 | 69.3 ± 26.0 | 0.03* |
KOOS- | preoperative | 59.8 ± 18.2 | 59.7 ± 15.7 | 0.98 | 63.9 ± 19.3 | 57.3 ± 16.9 | 0.2 |
ADL | postoperative | 83 ± 18.4 | 87.7 ± 10.1 | 0.33 | 90.1 ± 8.3 | 84.1 ± 12.2 | 0.02* |
 | improvement rate (%) | 59.4 ± 36.1 | 68.1 ± 26.2 | 0.39 | 72.2 ± 29.3 | 55.9 ± 32.4 | 0.06 |
KOOS- | preoperative | 25.9 ± 19.5 | 25.9 ± 12.4 | 0.99 | 26.8 ± 15.2 | 26.4 ± 14.5 | 0.92 |
QOL | postoperative | 66.5 ± 26.7 | 66 ± 22.6 | 0.95 | 74.9 ± 18.5 | 59.5 ± 19.4 | 0.004* |
 | improvement rate (%) | 57.6 ± 29.0 | 54.6 ± 28.4 | 0.74 | 63.5 ± 28.9 | 44.6 ± 24.8 | 0.02* |