Studying the effect of Rheumatoid Arthritis (RA) on tendons As early as 1968, tendon involvement in Rheumatoid Arthritis was recognized and investigated as seen in the abstract “Tendon Involvement in Rheumatoid Arthritis” in Annals of the Rheumatic Diseases: Tenosynovitis is one of the common features of rheumatoid arthritis in the hand. It affects both the ...