Rhumatoid arthritis | osteoarthritis | |
Autoimmune disorder | degenerative wear disorderand tear type disorder | |
Primary joints affected |
matacarpophalangeal Proximal interphalangeal |
Distal-interphalangeal Carpometacarpel |
Heberden's node | Absent | frequently present |
Joint characteristics | soft, warm and tender | hard and bony |
Stiffness |
worse after resting (Morning stiffness) |
worse after effort (Evening stiffness) |
Lab findings |
Positive rheumatoid factor Positive anti CCP antibody Elevated ESR and CRP |
Rheumatoid factor negative Anti CCP antibody negative Normal ESR and CRP |
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