Table 3.
Comparison of baseline and follow-up outcomes in each group
| Outcomes | (n) | Intervention | P value | (n) | Control | P value | ||
|---|---|---|---|---|---|---|---|---|
| Baseline | Follow-up | Baseline | Follow-up | |||||
| Primary (NRS score; 0–10) | ||||||||
| Pain at rest | 44 | 2.0 (2.6) | 1.1 (1.3) | 0.033 | 52 | 1.9 (2.3) | 0.8 (1.2) | 0.001 |
| Pain during walking | 42 | 4.7 (2.3) | 2.2 (1.4) | < 0.001 | 47 | 4.2 (2.8) | 2.6 (2.1) | 0.003 |
| Secondary | ||||||||
| PCS score (0–52) | 42 | 30.3 (6.5) | 16.9 (9.7) | < 0.001 | 48 | 30.8 (7.7) | 20.7 (8.4) | < 0.001 |
| PSEQ score (0–60) | 42 | 37.6 (10.6) | 43.4 (10.2) | 0.005 | 48 | 36.3 (11.1) | 38.7 (12.8) | 0.215 |
| Knee extension (kgf/kg) | ||||||||
| Operative side | 37 | 0.25 (0.09) | 0.22 (0.10) | 0.071 | 48 | 0.30 (0.14) | 0.30 (0.13) | 0.827 |
| Nonoperative side | 37 | 0.31 (0.09) | 0.35 (0.11) | 0.015 | 44 | 0.30 (0.14) | 0.33 (0.14) | 0.126 |
| 10-m walking test (s) | 35 | 8.9 (3.2) | 9.6 (2.4) | 0.186 | 47 | 9.1 (3.3) | 10.5 (7.6) | 0.135 |
Data are presented as mean (standard deviation). Baseline: preoperative, Follow-up: 5 weeks postoperatively, NRS numerical rating scale, PCS Pain Catastrophizing Scale, PSEQ Pain Self-Efficacy Questionnaire