M12.0

Clinical Causes: Previous episodes of rheumatic fever, especially if not adequately treated Persistent inflammation of the joints following rheumatic heart disease Autoimmune responses leading to soft tissue damage around the joints

Key Symptoms: Joint deformities, particularly in the fingers, with a characteristic 'Ulnar deviation' — where fingers drift away from the thumb towards the little finger Limited joint mobility and stiffness Swelling or tenderness around affected joints, though less prominent than in active rheumatoid arthritis Pain or discomfort in some cases, especially during activity or with joint manipulation Reversible deformities, meaning they can sometimes be corrected with appropriate treatment and physical therapy

Diagnosis Path: Diagnosis typically involves a thorough medical history, including prior rheumatic fever episodes, and physical examinations to observe joint deformities. Imaging tests such as X-rays may reveal soft tissue changes but usually show minimal bone damage. Laboratory tests may help rule out other causes of joint deformities such as rheumatoid arthritis or osteoarthritis, and to confirm previous rheumatic fever via evidence of antibody responses.

Treatment Protocols: While there is no specific cure for Jaccoud's arthropathy, management focuses on controlling symptoms and preventing progression. Treatment options include: - Anti-inflammatory medications to reduce joint swelling and discomfort - Physical and occupational therapy to improve joint mobility and strength - Splints or braces to support joints and correct deformities - Regular follow-up to monitor joint function and prevent complications - Managing underlying rheumatic disease to minimize further joint damage In some cases, surgical interventions may be considered to correct severe deformities, but these are generally reserved for advanced cases that do not respond to conservative treatments.