Oedema on MRI at return to play*
| PRP (n=33) | Placebo (n=30) | Between-group difference (95% CI) | |
|---|---|---|---|
| Cross sectional area, % of total muscle | 15±22 | 14±20 | 1 (−9 to 12) |
| Longitudinal length, cm | 5.3±5.2 | 5.5±5.4 | −0.2 (−2.8 to 2.4) |
*Plus–minus values are means±SD.
PRP, platelet-rich plasma.