Table 4.
Comparison between the PRP and control groups.
| PRP | Control | p value | |
|---|---|---|---|
| Hemoglobin (mg/dL) | |||
| Before operation | 11.610 (1.405) | 12.105 (1.611) | >0.05 |
| 24 h after operation | 10.285 (1.467) | 10.759 (1.686) | >0.05 |
| 48 h after operation | 9.605 (1.259) | 9.841 (1.454) | >0.05 |
| Hematocrit (%) | |||
| Before operation | 35.030 (3.508) | 36.618 (4.803) | >0.05 |
| 24 h after operation | 30.930 (3.525) | 32.227 (5.199) | >0.05 |
| 48 h after operation | 29.225 (3.443) | 29.545 (4.381) | >0.05 |
| ROM (degrees) | |||
| Before operation | 115 (45; 130) | 115 (55; 120) | >0.05 |
| 24 h after operation | 55 (30; 85) | 55 (30; 85) | >0.05 |
| 48 h after operation | 75 (60; 85) | 75 (55; 85) | >0.05 |
| 7 d after operation | 82.5 (60; 100) | 82.5 (60; 100) | >0.05 |
| 21 d after operation | 95 (60; 110) | 90 (45; 105) | >0.05 |
| 2 m after operation | 97.5 (45; 120) | 95 (45; 120) | >0.05 |
| Pain (scores from 0 to 10) | |||
| 24 h after operation | 6.0 (2.0; 8.0) | 7.0 (4.0; 8.0) | <0.05 |
| 48 h after operation | 3.0 (0.0; 6.0) | 4.0 (2.0; 6.0) | <0.05 |
| 7 d after operation | 2.0 (0.0; 3.0) | 2.0 (1.0; 3.0) | <0.05 |
| 21 d after operation | 1.0 (0.0; 2.0) | 2.0 (0.0; 3.0) | <0.05 |
| 2 m after operation | 0.0 (0.0; 2.0) | 1.0 (0.0; 3.0) | <0.05 |
| WOMAC (between 0 and 96) | |||
| Before operation | 45.5 (30.0; 54.0) | 46.0 (21.0; 60.0) | >0.05 |
| 2 m after operation | 70.0 (59.0; 80.0) | 72.0 (0.0; 82.0) | >0.05 |
ROM, range of motion of the knee; Pain, verbal pain scale; WOMAC, Western Ontario and McMaster Universities Index.19