Table 3.
Pain, physical performances during activity of daily living and active knee range of motion. Values are mean (SD) unless otherwise stated
| Primary TKA (n: 166) |
Revision TKA (n: 51) |
|||||||
|---|---|---|---|---|---|---|---|---|
| Before | After | Change | 95% CI | Before | After | Change | 95% CI | |
| NRS at rest (median, min-max) | 0.0 (0–8) | 0.0 (0–4) | NA * | NA | 0.0 (0–7) | 0.0 (0–7) | NA | NA |
| NRS during activity | 5.4 (2.9) | 3.7 (2.6) | 1.7* (2.6) | [1.3; 2.1] | 5.4 (2.9) | 4.6 (2.8) | 0.8* (1.9) | [0.2; 1.3] |
| 6 min. walking test (m) | 421.9 (91.6) | 513.1 (97.9) | 91.1* (56.6) | [82.4; 100.0] | 407.7 (108.9) | 496.6 (111.8) | 88.8* (60.0) | [72.0; 105.7] |
| Stair climbing test (sec) | 34.8 (18.6) | 23.2 (10.3) | 11.6* (11.9) | [9.7; 13.4] | 38.6 (24.7) | 23.1 (9.8) | 15.5* (17.4) | [10.6; 20.4] |
| Active knee extension (o)§ | 3.3 (5.0) | 2.2 (3.9) | 1.1* (3.0) | [0.6; 1.6] | 2.0 (2.9) | 1.1 (2.2) | 0.9* (2.0) | [0.3; 1.4] |
| Active knee flexion (o) | 106.6 (15.7) | 113.5 (14.9) | 6.9* (5.7) | [6.1; 7.8] | 105.4 (15.3) | 112.4 (14.0) | 7.0* (5.6) | [5.4; 8.5] |
NRS Numerical Rating Scale. Paired samples t-test were used for all outcomes except for NRS at rest, where Wilcoxon Signed Rank test was applied. *: P-value < 0.05. NA: Not applicable. §: Full knee extension = 0o