Table 3.
Correlations between measurement changes and their significance in all participants
| Variables | Knee swelling (1 cm) (%) |
Thigh swelling (%) |
ΔKnee pain during the QST (mm) | QW (%) |
ΔKnee pain during the TUG (mm) |
|---|---|---|---|---|---|
| r (p) | r (p) | r (p) | r (p) | r (p) | |
| Thigh swelling (%) | 0.84 (0.00) | – | – | – | – |
| ΔKnee pain during the QST (mm) | 0.15 (0.05) | 0.19 (0.01) | – | – | – |
| QW (%) | −0.27 (0.00) | −0.26 (0.00) | −0.23 (0.00) | – | – |
| ΔKnee pain during the TUG (mm) | 0.10 (0.19) | 0.08 (0.32) | 0.30 (0.00) | −0.10 (0.17) | – |
| ΔTUG (%) | 0.23 (0.00) | 0.23 (0.00) | 0.01 (0.93) | −0.40 (0.00) | 0.02 (0.84) |
Note. N = 173, male = 44. r stands for Spearman correlation coefficients. The Δ symbol indicates pre- and postoperative measurement changes
Abbreviations: QW quadriceps weakness, QST quadriceps strength test, TUG timed up and go test