Prediction model for juvenile idiopathic arthritis: challenges and opportunities
Acute and chronic musculoskeletal pain is a common reason for referral to the pediatric rheumatologist. (1,2,3) The differential diagnosis is extensive; patients may be diagnosed with inflammatory joint pain, includingjuvenile idiopathic arthritis (JIA), arthritis related to infection (e.g.: reactive arthritis – including rheumatic fever and post-strep, viral arthritis, Lyme disease) and other autoimmune and inflammatory disorders such as systemic lupus erythematosus; painful non-inflammatory MSK disorders include overuse injuries (e.g.: patellofemoral pain syndrome (PFPS)), osteochondroses (i.e.: Osgoo d-Schlatter disease), benign joint hypermobility syndromes, benign limb pain of childhood; orthopedic disorders (e.g.: Legg-Calvé-Perthes and osteochondritis dissecans) and chronic MSK pain syndromes (CMPS) such as juvenile fibromyalgia (JFM), complex regional pain syndrome (CRPS) and localized pai n (e.g.: back pain).