Grade

Radiologic Findings

0

No radiological findings of osteoarthritis

I

Doubtful narrowing of joint space and possible osteophytic lipping

II

Definite osteophytes and possible narrowing of joint space

III

Moderate multiple osteophytes, definite narrowing of joint space, small pseudocystic areas with sclerotic walls and possible deformity of bone contour

IV

Large osteophytes, marked narrowing of joint space, severe sclerosis and definite deformity of bone contour