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What is boutonniere deformity in Rheumatoid Arthritis?

Answer :

Final answer:

Boutonniere deformity in Rheumatoid Arthritis is a condition where the finger's middle joint bends down and the end joint hyperextends, often due to tendon damage from chronic inflammation. Treatments may include splinting, medication, or surgery.

Explanation:

What is Boutonniere Deformity in Rheumatoid Arthritis?

Rheumatoid arthritis (RA) is an autoimmune inflammatory disorder that primarily affects the synovial joints. In RA, the joint capsule and synovial membrane become inflamed, leading to cartilage breakdown, bone damage, and pain in joints. A common manifestation of RA in the hands is boutonniere deformity.

This specific deformity occurs when the middle joint of a finger bends downwards while the end joint hyperextends, resembling a buttonhole ('boutonniere' in French). It is a result of changes in the tendons that control finger movements, often due to chronic inflammation and damage associated with RA. Treatments for boutonniere deformity may include splinting, medications, and in severe cases, surgery to correct the deformity and restore hand function.

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