Which joint is spared in rheumatoid ahritis

In rheumatoid ahritis paicular impoance is the sparing of distal interpharyngeal joints. Rheumatoid ahritis (RA) is a chronic, systemic autoimmune disease that involves inflammation in the membrane lining of the joints and often affects internal organs. Most patients exhibit a chronic fluctuating course of disease that can result in progressive joint destruction, deformity, and disability. RA affects between 1 and 2 million Americans. It occurs three times more often in women, and peaks at age 35 to 50 years. JOINTS INVOLVED : Hands and wrists Shoulders Elbows Feet Knees Hips Cervical spine Refr Maheshwari 9th /e p 287