Table 3. Clinical outcomes for each group of arthroplasty patients at 2 years.
| Clinical outcomes | TKA with no previous knee surgery | TKA with previous history of surgery | P value |
|---|---|---|---|
| Flexion range of movement (degree) | 118±15 | 119±17 | 0.684 |
| KSS-functional score | 73.0±19.3 | 74.7±16.8 | 0.656 |
| KSS-objective score | 84.8±12.6 | 83.6±14.8 | 0.637 |
| Oxford Knee Score | 18.8±6.1 | 18.4±5.8 | 0.732 |
| SF-36 (physical function) | 66.9±22.3 | 66.4±22.4 | 0.905 |
| SF-36 (role physical) | 77.6±36.7 | 58.6±45.5 | 0.038* |
| SF-36 (bodily pain) | 72.2±24.9 | 62.1±25.4 | 0.060 |
| SF-36 (general health) | 71.5±19.7 | 74.6±21.1 | 0.425 |
| SF-36 (vitality) | 74.3±18.2 | 72.8±19.5 | 0.670 |
| SF-36 (social functioning) | 90.2±24.4 | 87.9±24.7 | 0.636 |
| SF-36 (role emotional) | 95.5±19.4 | 86.2±31.5 | 0.130 |
| SF-36 (mental health) | 84.1±13.7 | 83.0±13.4 | 0.682 |
*, P<0.05. TKA, total knee arthroplasty; KSS, Knee Society Score.