TABLE I.

Arthroscopic (ICRS) Grading of Cartilage Repair^*

	Points
Degree of defect repair
Level with surrounding cartilage	4
75% of defect depth	3
50% of defect depth	2
25% of defect depth	1
0% of defect depth	0
Integration to border zone
Complete integration with surrounding cartilage	4
Demarcating border <1 mm	3
3/4 of graft integrated with surrounding cartilage, 1/4 with notable border of >1 mm	2
1/2 of graft integrated with surrounding cartilage, 1/2 with notable border of >1 mm	1
From no contact to 1/4 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 but 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

^*The maximum possible score is 12 points, and a higher score is better.