Grade - Changes Description

Grade 0 - None no changes

Grade I - Doubtful doubtful narrowing of joint space and possible osteophytic lipping

Grade II - Minimal definite osteophytes, definite narrowing of joint space

Grade III - Moderate moderate multiple osteophytes, definite narrowing of joint space, some sclerosis and possible deformity of bone contour

Grade IV - Severe large osteophytes, marked narrowing of joint space, severe sclerosis and definite deformity of bone contour

Classification as “degenerated” or “nondegenerated” < 2