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Table 3 Modified Mankin score for evaluation of articular cartilage degeneration as described by Henson and Vincent [32]

From: Comparison of properties determined using electromechanical assessment (Arthro-BST™) with macroscopic and histological properties in symptomatic human articular cartilage of the hip

Score Structure Cellularity Matrix staining Tidemark integrity
Score 0 Smooth surface Normal arrangement Normal staining Normal and intact
Normal appearance    
Score 1 Roughened surface Clustering in the superficial layer or loss of cells up to 10% Slight loss of stain Disrupted
Single crack or area of delamination   
Score 2 Multiple cracks Disorganization or loss up to 25% Moderate loss of stain  
Moderate delamination   
Score 3 Fragmentation in cartilage or severe delamination Cell rows absent or loss up to 50% Severe loss of stain  
Score 4 Loss of fragments Very few cells present No stain present  
Score 5 Complete erosion to tidemark    
Score 6 Erosion beyond tidemark