Table 2

Modified scoring key for rat foot pad damage

Score

Proteoglycan retention

Inflammation

Bone damage

0

> 90% present

Few cells

Normal

1

> 50% present

Slight to moderate

Questionable damage

2

Only chondrocytes stain

Moderate to heavy

Damaged

3

< 10% present

Extremely heavy

Milici et al. Arthritis Research & Therapy 2008 10:R14   doi:10.1186/ar2365