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What is Which of the following is not a feature of rheumatoid ahritis? and explain in detail?
Heberden does is a feature of osteoahritis and not rheumatoid ahritisImpoant hand deformities of hand in RABoutonniere deformity: flexion contracture of PIP joint and extension DIP jointSwan neck deformity: hyperextension of PIP joint and flexion at DIP joint(Refer: Mohindra's Fundamentals of Ohopedics, 2nd edition, pg no. 88, 101, 127)