Synovial fluid β-endorphin level in avascular necrosis, rheumatoid arthritis, and osteoarthritis of the femoral head and knee. A controlled pilot study

The american rheumatism association 1987 revised criteria for the classification of rheumatoid arthritis

Frank C. Arnett, Steven M. Edworthy, D. Blöch et al. · Arthritis & Rheumatism · 1988 · 19.9K citations

Medicine, Clinical Sciences, Internal Medicine +12

Radiological Assessment of Osteo-Arthrosis

Jan Kellgren, J. S. Lawrence · Annals of the Rheumatic Diseases · 1957 · 12.4K citations · Full text

Medicine, Orthopaedic Surgery, Radiology +10

Revised Criteria for the Classification of Rheumatoid Arthritis

Frank C. Arnett · Orthopaedic Nursing · 1990 · 7.7K citations

Medicine, Internal Medicine, Autoimmunity +7

Development of criteria for the classification and reporting of osteoarthritis: Classification of osteoarthritis of the knee

Roy D. Altman, E. Asch, D. Blöch et al. · Arthritis & Rheumatism · 1986 · 6.8K citations

Medicine, Orthopaedic Surgery, Orthopedic Surgery +13

A quantitative system for staging avascular necrosis

M E Steinberg, D. Steinberg · Journal of Bone and Joint Surgery - British Volume · 1995 · 736 citations · Full text

Medicine, Orthopaedic Surgery, Orthopedic Surgery +13