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. 2014 Dec 17;15:438. doi: 10.1186/1471-2474-15-438

Table 1.

Modified mankin scoring criteria

Score
Structure
Normal 0
Surface irregularities 1
Pannus and surface irregularities 2
Clefts to middle zone 3
Clefts to deep zone 4
Clefts to calcified zone 5
Complete disorganization 6
Cells
Normal 0
Diffuse hypercellularity 1
Cluster/cloning 2
hypocellularity 3
Sarafin O staining
Normal 0
Slight reduction 1
Moderate reduction 2
Severe reduction 3
No dye noted 4