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Table 1 ICRS repair score[16]

From: Osteochondral tissue engineering using a biphasic collagen/GAG scaffold containing rhFGF18 or BMP-7 in an ovine model

Characteristic

Grading

Score

Degree of defect repair

Level with surrounding cartilage

4

 

75% repair of defect depth

3

 

50% repair of defect depth

2

25% repair of defect depth

1

0% repair of defect depth

0

Integration to border zone

Complete integration with border zone

4

 

Demarcating border <1 mm

3

 

¾ of graft integrated, ¼ with notable border >1 mm

2

½ of graft integrated with surrounding cartilage, ½ with a notable border >1 mm

1

From no contact to 1/4th 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

 

Total

12