MRI findings seen in injuries of the MCL
| Grade | Findings |
|---|---|
| 1 | Fluid on either the inner or the outer aspect of the superficial fibres |
| 2 | Fluid on both sides of the ligament with or without internal foci of high signal but without discontinuity |
| 3 | Complete disruption/discontinuity of the ligament |
Reproduced from Schweitzer et al,29 with permission. MCL, medial collateral ligament; MRI, magnetic resonance imaging.