"grade 0: normal"
"grade 1: possible joint space narrowing and subtle osteophytes"
"grade 2: definite joint space narrowing, defined osteophytes and some sclerosis, especially in the acetabular region"
"grade 3: marked joint space narrowing, small osteophytes, some sclerosis and cyst formation and deformity of femoral head and acetabulum"
"grade 4: gross loss of joint space with above features plus large osteophytes and increased deformity of the femoral head and acetabulum"
"grade 0: no signs of osteoarthritis"
"grade 1: minor joint space narrowing, subchondral sclerosis of the femoral head and/or acetabulum, small osteophytes"
"grade 2: moderate joint space narrowing, small subchondral cysts of the femoral head and/or acetabulum, moderate loss of sphericity of the femoral head"
"grade 3: severe joint space narrowing or obliteration, large subchondral cysts, severe deformity of the femoral head"
"grade 1: only osteophytic changes"
"grade 2: only joint space narrowing"
"grade 3: two of the above mentioned radiographic features"
"grade 4: three of the above mentioned radiographic features"
"grade 5: femoral head deformity plus three of the above mentioned radiographic features"
"grade 0: normal"
"grade 1: inhomogeneous high signal intensity in cartilage (T2WI)"
"grade 2: inhomogeneity with areas of high signal intensity in articular cartilage (T2WI); indistinct trabeculae or signal intensity loss in femoral head and neck (T1WI)"
"grade 3: criteria of grade 1 and 2 plus indistinct zone between femoral head and acetabulum; subchondral signal loss due to bone sclerosis"
"grade 4: above criteria plus femoral head deformity"
"grade 2: moderate joint space narrowing, small subchondral cysts of the femoral head and/or acetabulum, moderate loss of sphericity of the femoral head"
Expected headings
"Classification"
"Plain radiograph"
"Tönnis classification for osteoarthritis of the hip"
"Croft score for hip osteoarthritis"
"MRI"
"grade 2: inhomogeneity with areas of high signal intensity in articular cartilage (T2WI); indistinct trabeculae or signal intensity loss in femoral head and neck (T1WI)"
"grade 3: criteria of grade 1 and 2 plus indistinct zone between femoral head and acetabulum; subchondral signal loss due to bone sclerosis"