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Hip involvement in juvenile rheumatoid arthritis
F S Jacobsen1, A H Crawford, S Broste
1Marshfield Clinic, Wisconsin 54449.
Journal of Pediatric Orthopedics
|January 1, 1992
Summary
Juvenile rheumatoid arthritis (JRA) prognosis varies by subtype and age of onset. Hip involvement significantly impacts function, while early systemic-onset JRA shows a worse outlook with more radiographic changes.
Area of Science:
- Pediatric Rheumatology
- Clinical Immunology
- Orthopedic Outcomes
Background:
- Juvenile rheumatoid arthritis (JRA) is a chronic autoimmune condition affecting children.
- Hip involvement is a known complication that can lead to functional limitations.
Purpose of the Study:
- To investigate the long-term prognosis of juvenile rheumatoid arthritis (JRA) in a cohort of children.
- To identify factors influencing functional capacity and radiographic changes in different JRA subtypes.
Main Methods:
- Longitudinal follow-up of 386 children diagnosed with JRA.
- Average follow-up duration of 89 months.
- Analysis of prognostic factors including JRA subtype and age of onset.
Main Results:
- Hip involvement in JRA is associated with poor functional capacity.
- Pauciarticular JRA has a generally good prognosis, but onset after age 6 correlates with worse outcomes.
- Polyarticular JRA prognosis is not affected by age of onset.
- Systemic-onset JRA in younger children (<6 years) shows a worse prognosis and increased radiographic changes.
Conclusions:
- Age of onset and JRA subtype are critical determinants of long-term outcomes.
- Early identification and management of hip involvement are crucial for improving functional capacity in JRA.
- Systemic-onset JRA in early childhood warrants close monitoring for radiographic progression.