Table 1A.

The ICRS ranking scale of the gross observation.

Gross appearance	Points
I 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
00% repair of defect depth	0
II Integration to border zone
Complete integration with surrounding cartilage	4
Demarcating border <1 mm	3
3/4 of graft integrated, 1/4 with a notable border >1 mm width	2
1/2 of graft integrated with surrounding cartilage, 1/2 with a notable border >1 mm	1
From no contact to 1/4 of graft integrated with surrounding cartilage	0
III Macroscopic appearance
Intact smooth surface	4
Fibrillated surface	3
Small, scattered fissures or cracs	2
Several, small or few but large fissures	1
Total degeneration of grafted ared	0
Overall repair assessment
Grade I normal	12
Grade II nearly normal	11–8
Grade III abnormal	7–4
Grade IV severely abnormal	3–1