Table 2.
Magnetic Resonance Observation of Cartilage Repair Tissue (MOCART) Score Results
| Absolute | Percentage | |
|---|---|---|
| 1. Filling of the defect | ||
| Complete | 11 | 78.6 |
| Hypertrophy | 0 | 0.0 |
| Incomplete, % | ||
| >50 | 3 | 21.4 |
| <50 | 0 | 0.0 |
| 0 | 0 | 0.0 |
| Volume fill, % | ||
| 0 | 0 | 0.0 |
| 0-25 | 0 | 0.0 |
| 25-50 | 0 | 0.0 |
| 50-75 | 1 | 7.1 |
| 75-100 | 3 | 21.4 |
| 100 | 9 | 64.3 |
| >100 | 0 | 0.0 |
| 2. Cartilage interface lengths (filling parallel to cartilage surface) | ||
| Complete (integration with surrounding cartilage) | 14 | 100,0 |
| Incomplete (integration with surrounding cartilage) | 0 | 0,0 |
| Demarcation border visible (split like) | 0 | 0.0 |
| Defect visible | ||
| <50% of length of the RT | 0 | 0.0 |
| >50% of length of the RT | 0 | 0.0 |
| 3. Surface of the repair tissue | ||
| Surface intact | 11 | 78.6 |
| Surface damaged | ||
| Fibrillations/fissures/ulcerations | 1 | 7.1 |
| <50% of RT depth | 2 | 14.3 |
| >50% of RT depth/total degeneration | 0 | 0.0 |
| 4. Structure | ||
| Homogeneous | 10 | 71.4 |
| Inhomogeneous | 4 | 28.6 |
| 5. Adjacent bone marrow | ||
| Normal | 6 | 42.9 |
| Edema | ||
| Minor | 3 | 21.4 |
| Moderate (<2 cm) | 4 | 28.6 |
| Severe (>2 cm) | 1 | 7.1 |
| Cyst | 0 | 0.0 |
| Granulation tissue | 0 | 0.0 |
| Cyst | 0 | 0.0 |
| Sclerosis | 0 | 0.0 |
| 6. Signal intensity | ||
| True FISP 3-dimensional | ||
| Isointense | 11 | 78.6 |
| Hyperintense | 0 | 0.0 |
| Hypointense | 3 | 21.4 |
| PD-TSE | ||
| Isointense | 8 | 57.1 |
| Hyperintense | 1 | 7.1 |
| Hypointense | 5 | 35.7 |
| 7. Effusion | ||
| No | 12 | 85.7 |
| Yes | 2 | 14.3 |
Note: RT = repair tissue; true FISP = true fast imaging with steady-state precession; PD-TSE = proton density turbo spin echo.