Development of a logically devised line drawing atlas for grading of knee osteoarthritis

A Coefficient of Agreement for Nominal Scales

Jacob Cohen · Educational and Psychological Measurement · 1960 · 41.3K citations

Education, Educational Assessment, Educational Measurement +8

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

Statistical methods for assessing observer variability in clinical measures.

Paul Brennan, Alan J. Silman · BMJ · 1992 · 990 citations · Full text

Medicine, Radiology, Survival Analysis +11

Radiographic patterns of osteoarthritis of the knee joint in the community: the importance of the patellofemoral joint.

Timothy E. McAlindon, S Snow, Cyrus Cooper et al. · Annals of the Rheumatic Diseases · 1992 · 598 citations

Medicine, Orthopaedic Surgery, Orthopedic Surgery +9

Quadriceps weakness in knee osteoarthritis: the effect on pain and disability

S. C O'Reilly, A C Jones, Michael Doherty · Annals of the Rheumatic Diseases · 1998 · 532 citations

Medicine, Orthopaedic Surgery, Orthopedic Surgery +17