STAGE | DESCRIPTIONS |
A | Articular cartilage is smooth and intact but soft |
B | Articular cartilage surface is rough |
C | Fibrillation or fissuring of the cartilage is present |
D | Osteochondral flap is present or bone is exposed |
E | Osteochondral fragment is detached but undisplaced |
F | Osteochondral fragment is detached and displaced |