| IV group | IA group | Placebo group | F/χ2 value | p value |
---|---|---|---|---|---|
Day 1 | |||||
 Drain output volume (mL) | 78.5 ± 38.4c | 63.3 ± 31.8c | 120.1 ± 57.4a, b | 21.522 | < 0.001 |
Week 1 | |||||
 VAS score | 2.7 ± 1.0c | 2.4 ± 1.1c | 3.5 ± 0.9a, b | 12.793 | < 0.001 |
 Patellar circumference (cm) | 18.1 ± 5.0c | 19.4 ± 6.2c | 24.6 ± 7.0a, b | 12.549 | < 0.001 |
 Hemarthrosis grade, 0/1/2/3/4, n. | 9/16/8/5/2c | 8/16/11/4/1 c | 0/5/11/15/9a, b | 35.221 | < 0.001* |
Week 2 | |||||
 VAS score | 2.3 ± 1.1c | 2.2 ± 1.1c | 3.1 ± 1.1a, b | 8.343 | < 0.001 |
 Patellar circumference (cm) | 11.2 ± 4.2c | 10.0 ± 3.4c | 16.0 ± 5.4a, b | 20.446 | < 0.001 |
 Hemarthrosis grade, 0/1/2/3/4, n. | 13/19/6/2/0c | 13/18/8/1/0c | 4/16/16/4/0a, b | 13.186 | 0.031 |
Week 4 | |||||
 VAS score | 1.7 ± 1.2 | 1.7 ± 1.2 | 1.9 ± 1.4 | 0.265 | 0.768 |
 Patellar circumference (cm) | 5.7 ± 3.1 | 5.3 ± 3.2 | 5.8 ± 3.9 | 0.258 | 0.773 |
 Hemarthrosis grade, 0/1/2/3/4, n. | 16/17/5/2/0 | 18/17/2/3/0 | 11/18/8/3/0 | 5.742 | 0.455 |
 Lysholm score | 80.9 ± 11.8 | 82.1 ± 11.1 | 78.6 ± 10.6 | 1.026 | 0.362 |