Table 1.
Modified ICRS histological scoring scale for evaluation of articular cartilage repair [11]
| Feature | Score |
|---|---|
| Surface | |
| Smooth/continuous | 3 |
| Discontinuous/irregularities | 0 |
| Matrix | |
| Hyaline | 3 |
| Mixture: hyaline/fibrocartilage | 2 |
| Fibrocartilage | 1 |
| Fibrous tissue | 0 |
| Cell distribution | |
| Mixed/columnar clusters | 3 |
| Clusters | 2 |
| Individual/organized | 1 |
| Individual/disorganized | 0 |
| Integration with surrounding cartilage | |
| Two edges | 2 |
| One edge | 1 |
| Without integration | 0 |
| Cartilage thickness | |
| 2/3 | 2 |
| 1/3–2/3 | 1 |
| <1/3 | 0 |
| Subchondral bone | |
| Normal | 3 |
| Increasing remodelling | 2 |
| Bone necrosis/granulation tissue | 1 |
| Detached/fracture/callus at base | 0 |