Table 1.
Modified Mankin Score used for histological analysis.
I Structure | Grade |
---|---|
Normal | 0 |
Superficial layer disrupted | 1 |
Superficial layer absent | 2 |
Irregular Surface | 3 |
Fissures into the middle zone | 4 |
Slight disorganization | 5 |
Fissures into the deep zone | 6 |
Chaotic disorganization | 7 |
II Cellular abnormalities | |
Normal | 0 |
Hypocellularity | 1 |
Large Clones | 2 |
III Matrix Staining | |
Normal | 0 |
Staining reduced in middle layer | 1 |
Staining reduced in territorial matrix of middle or deep layer | 2 |
Staining present in the interterrritorial matrix and reduced in the territorial matrix |
3 |
Staining reduced in both territorial and interterritorial matrices | 4 |
Maximum Score | 13 |