Table 1 Mankin score (criteria for histological evaluation).
Item | Grade/classification | Grade |
|---|---|---|
Structural intergrity | Normal | 0 |
Irregular Surface | 1 | |
Pannus formation | 2 | |
Fissures into transitional layer | 3 | |
Fissures into emmiting layer | 4 | |
Fissures into calcified layer | 5 | |
Complete disorganization | 6 | |
Cells | Normal | 0 |
Hypercellularity | 1 | |
Cloning | 2 | |
Hypocellularity | 3 | |
Safranin-O staining | Normal | 0 |
Slight reduction | 1 | |
Moderate reduction | 2 | |
Severe reduction | 3 | |
No dye noted | 4 | |
Tidemark intergrity | Normal | 0 |
Disruption | 1 |
