© 1976 British Society for Rheumatology
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INHIBITION OF SECONDARY OSTEOPHYTE FORMATION IN RHEUMATOID ARTHRITIS

*Professor of Medicine, Chief, Division of Rehabilitation Medicine UCLA School of Medicine California, U.S.A.
401 E. Forest Street, Marshfield, Wisconsin
Using radiographically demonstrated joint narrowing as an index of joint damage, a reduced incidence of osteophyte size and number as a measure of osteoarthritic change in the PIP and knee joints of patients with RA as compared to DJD has been demonstrated. The possible pathogenetic factors discussed include reduced joint use in RA, increased resilience of juxtaarticular bone associated with osteoporosis in RA and the possibility that products of inflammation in the RA joint act locally or via juxta-articular vascular mechanisms to inhibit the roles of joint stress, juxta-articular osteoporosis, and possible effects of the inflammatory reaction of the rheumatoid joint on intra-articular structures and juxta-articular vascular phenomena are needed.