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© 1992 British Society for Rheumatology

other

EFFECT OF DOMINANCY ON SEVERITY IN RHEUMATOID ARTHRITIS

K. BOONSANER, W. LOUTHRENOO, S. MEYER* and H. R. SCHUMACHER, JR

Rheumatology Section, Department of Medicine University of Pennsylvania, School of Medicine and Arthritis Immunology Center, Veterans' Administration Medical Centre Philadelphia, PA, USA
*Department of Radiology University of Pennsylvania, School of Medicine and Arthritis Immunology Center, Veterans' Administration Medical Centre Philadelphia, PA, USA

Correspondence to: Correspondence to H. Ralph Schumacher Jr, VA Medical Center, University and Woodland Avenues, Philadelphia, PA 19104, USA

Joint use has been felt to increase the severity of rheumatoid synovitis. Ninety-three patients with definite or classical rheumatoid arthritis (RA) were studied blind for clinical and radiological findings to see the effect of dominancy on the severity of the arthritis. The dominant side showed significantly greater total swelling scores (P<0.0001) and total tender ness scores (P<0.01). This was explained predominantly by greater severity of arthritis in dominant arms and hands. X-rays of the dominant hands and wrists showed more joint space narrowing (P<0.04) and erosion (P<0.01), but no differences in malalignment scores. There were no differences between dominant and non-dominant sides on frequency of intra-articular injections or use of splinting, but the dominant side received more surgical operations (P<0.02).

KEY WORDS: Rheumatoid arthritis, Dominancy, Severity, Splinting, Joint surgery


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