Distinguishing Autoimmune Synovitis from Wear-and-Tear
Joint pain can stem from different underlying pathologies. Understanding the differences between Rheumatoid Arthritis (RA) and Osteoarthritis (OA) is crucial for correct treatment.
Key Clinical Differences
| Feature | Rheumatoid Arthritis (RA) | Osteoarthritis (OA) |
|---|---|---|
| Origin | Autoimmune (synovial inflammation) | Wear-and-tear (cartilage breakdown) |
| Symmetry | Symmetrical (both hands/knees) | Asymmetrical (often one side) |
| Morning Stiffness | Prolonged (lasts over 1 hour) | Brief (resolves within 30 minutes) |
| Joints Affected | Knuckles and wrists | Knuckles and weight-bearing joints |
Diagnostic biomarkers: Rheumatoid Factor (RF) and Anti-CCP antibody blood tests are essential for confirming an autoimmune RA diagnosis.