Table I.
Beck classification of cartilage damage | ||
---|---|---|
Grade | Description | Criteria |
0 | Normal | Macroscopically sound cartilage |
1 | Malacia | Roughening of surface, fibrillation |
2 | Debonding | Loss of fixation to subchondral bone, macroscopically sound cartilage; carpet phenomenon |
3 | Cleavage | Loss of fixation to subchondral bone, frayed edge, thinning of the cartilage, flap |
4 | Defect | Full-thickness defect |