Table 2

Magnetic resonance imaging analysis four years after transplantation of the graft in focal degenerative cartilage defects

Characteristic

Magnetic resonance imaging score

1 (normal)

2 (mild)

3 (moderate)

4 (abnormal)

Defect filling

11 (complete filling), including 3 with minimal hypertrophic changes (<125%)

5 (>50%)

1 (<50%)

0 (no filling)

Signal intensity

8 (normal)

8 (some hyperintense areas)

1 (hyperintense areas)

0 (no signal)

Subchondral edema

4 (no edema)

7 (mild edema)

5 (moderate edema)

1 (distinct edema)

Effusion

1 (no effusion)

11 (mild effusion)

4 (moderate effusion)

1 (distinct effusion)

Kreuz et al. Arthritis Research & Therapy 2009 11:R33   doi:10.1186/ar2638