Parameters | Scoring |
---|---|
Cellularity of cartilage | |
 Normal | 0 |
  < 10% | 1 |
 10–25% | 2 |
 >25% | 3 |
Loss of matrix (erosions) | |
 Normal | 0 |
 < 10% | 1 |
 10–25% | 2 |
 >25% | 3 |
Cloning of chondrocytes | |
 Normal | 0 |
 < 10% | 1 |
 10–25% | 2 |
 >25% | 3 |
Adhesions (pannus) | |
 No Adhesions | 0 |
 Covering only margin of cartilage | 1 |
 Covering < 50% | 2 |
 Covering >50% | 3 |
Grey reads (Red value) a with Safranin-O | |
 Values more than 160 | 0 |
 Values within 140–160 | 1 |
 Values within 120–140 | 2 |
 Values within 100–120 | 3 |
 Values within 80–100 | 4 |