Table 2 Univariate statistical analysis results of various scoring systems between satisfaction outcome groups (satisfied/very satisfied, dissatisfied/very dissatisfied/neutral)
Variables | Satisfied (n = 456) | Dissatisfied (n = 89) | Significance (p) | Correlation coefficient between variables and overall satisfaction (r) |
|---|---|---|---|---|
Preoperative 1989 KSS | ||||
 Knee (mean±SD) | 48.66±10.85 | 35.61±12.03 | <0.001* | −0.372 |
 Function (mean±SD) | 39.21±9.02 | 21.91±18.66 | <0.001* | −0.370 |
 Total (mean±SD) | 87.87±15.19 | 57.52±27.54 | <0.001* | −0.432 |
Postoperative 1989 KSS | ||||
 Knee (mean±SD) | 85.66±9.87 | 71.97±18.74 | <0.001* | −0.292 |
 Function (mean±SD) | 82.11±13.00 | 48.54±25.30 | <0.001* | −0.493 |
 Total (mean±SD) | 167.77±16.84 | 120.51±38.61 | <0.001* | −0.504 |
Change 1989 KSS | ||||
 Knee (mean±SD) | 37.00±12.84 | 36.36±16.39 | <0.001* | −0.011 |
 Function (mean±SD) | 42.89±14.39 | 26.63±13.65 | <0.001* | −0.390 |
 Total (mean±SD) | 79.89±19.46 | 62.99±22.31 | <0.001* | −0.283 |
Preoperative WOMAC | ||||
 Pain (mean±SD) | 27.99±10.98 | 25.56±13.21 | 0.031* | −0.084 |
 Joint (mean±SD) | 58.83±23.92 | 48.17±23.88 | <0.001* | −0.166 |
 Function (mean±SD) | 36.22±9.07 | 33.65±9.82 | 0.016* | −0.106 |
 Total (mean±SD) | 41.01±9.96 | 35.80±10.22 | <0.001* | −0.183 |
Postoperative WOMAC | ||||
 Pain (mean±SD) | 87.73±10.75 | 59.38±23.15 | <0.001* | −0.470 |
 Joint (mean±SD) | 86.27±14.81 | 75.62±16.69 | <0.001* | −0.248 |
 Function (mean±SD) | 64.65±9.63 | 50.63±12.17 | 0.790 | −0.405 |
 Total (mean±SD) | 79.55±7.76 | 61.87±11.36 | <0.001* | −0.523 |
Change WOMAC | ||||
 Pain (mean±SD) | 59.75±12.74 | 33.81±22.64 | <0.001* | −0.427 |
 Joint (mean±SD) | 27.44±20.11 | 27.44±16.79 | 0.019* | 0.005 |
 Function (mean±SD) | 28.43±12.26 | 16.97±13.70 | <0.001* | −0.290 |
 Total (mean±SD) | 38.54±9.12 | 26.08±11.79 | 0.002* | −0.378 |
Preoperative SF-12 | ||||
 PCS (mean±SD) | 35.59±7.27 | 28.42±5.34 | 0.002* | −0.371 |
 MCS (mean±SD) | 32.52±6.70 | 29.03±5.67 | <0.001* | −0.207 |
Postoperative SF-12 | ||||
 PCS (mean±SD) | 49.71±5.26 | 39.46±8.69 | <0.001* | −0.454 |
 MCS (mean±SD) | 43.95±6.43 | 38.60±6.45 | <0.001* | −0.280 |
Change SF-12 | ||||
 PCS (mean±SD) | 14.12±7.66 | 11.04±7.22 | <0.001* | −0.155 |
 MCS (mean±SD) | 11.43±8.50 | 9.57±8.85 | 0.062 | −0.070 |
Postoperative 2011 KSS | ||||
 Symptom (mean±SD) | 15.52±2.33 | 12.24±2.64 | <0.001* | −0.402 |
 Satisfaction (mean±SD) | 29.31±6.93 | 16.48±7.52 | <0.001* | −0.495 |
 Expectation (mean±SD) | 12.17±2.23 | 6.96±2.59 | <0.001* | −0.551 |
 Function (mean±SD) | 67.80±13.02 | 37.66±15.51 | <0.001* | −0.543 |