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Table 1 International Cartilage Repair Society macroscopic evaluation of cartilage repair

From: Full-thickness cartilage defects are repaired via a microfracture technique and intraarticular injection of the small-molecule compound kartogenin

Categories Score
Degree of defect repair  
In level with surrounding cartilage 4
75% repair of defect depth 3
50% repair of defect depth 2
25% repair of defect depth 1
No repair of defect depth 0
Integration to border zone  
Complete integration with surrounding cartilage 4
Demarcating border /////_1 mm 3
Three-quarters of graft integrated, one-quarter with a notable border _1//// mm in width 2
One-half of graft integrated with surrounding cartilage, one-half with a notable border/// _1 mm 1
From no contact to one-quarter of graft integrated with surrounding cartilage 0
Macroscopic appearance  
Intact smooth surface 4
Fibrillated surface 3
Small, scattered fissures or cracks 2
Several small or few large fissures 1
Total degeneration of grafted area 0
Overall repair assessment  
Grade I: normal 12
Grade II: nearly normal 8-11
Grade III: abnormal 4-7
Grade IV: severely abnormal 1-3