Table 2. Clinical outcomes for each group of arthroplasty patients at 6 months.
| Clinical outcomes | TKA with no previous knee surgery | TKA with previous history of surgery | P value |
|---|---|---|---|
| Flexion range of movement (degree) | 115±15 | 118±13 | 0.290 |
| KSS-functional score | 69.5±18.5 | 76.8±16.1 | 0.045* |
| KSS-objective score | 82.7±12.1 | 83.2±11.2 | 0.841 |
| Oxford Knee Score | 20.1±6.2 | 19.5±5.0 | 0.584 |
| SF-36 (physical function) | 64.9±21.2 | 70.0±19.7 | 0.220 |
| SF-36 (role physical) | 69.6±39.5 | 73.2±40.8 | 0.650 |
| SF-36 (bodily pain) | 68.2±23.6 | 63.5±25.4 | 0.329 |
| SF-36 (general health) | 72.6±19.0 | 72.1±19.6 | 0.892 |
| SF-36 (vitality) | 72.6±20.0 | 72.1±19.5 | 0.909 |
| SF-36 (social functioning) | 85.8±27.5 | 84.3±30.5 | 0.795 |
| SF-36 (role emotional) | 91.6±26.7 | 94.0±22.3 | 0.641 |
| SF-36 (mental health) | 83.5±15.3 | 83.0±14.8 | 0.860 |
*, P<0.05. TKA, total knee arthroplasty; KSS, Knee Society Score.