Radiological Assessment of Osteo-Arthrosis
Annals of the Rheumatic DiseasesPublished 1 December 1957Open access
Jan Kellgren, J. S. Lawrence
Citations12,445
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It was concluded that, to ensure maximum uniformity in grading x rays in field surveys and therapeutic trials, all readings should be made by the same observer, preferably at a single session.
Keywords
Medicine
Annals of the Rheumatic DiseasesRadiological Signs of Rheumatoid Arthritis
102 Citations1956Jan Kellgren, F. Bier
It is suggested that the observer error in reading x rays of the hands and feet for rheumatoid arthritis may not be very great, and it has become necessary to know more about the reproducibility of such x-ray gradings by any given individual.