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Isolation and Culture of Primary Synovial Macrophages and Fibroblasts from Murine Arthritis Tissue
Published on: February 24, 2023
Monarticular juvenile rheumatoid arthritis
The Journal of Bone and Joint Surgery. British Volume
|August 1, 1980
Summary
Seven of 22 children with monarticular juvenile rheumatoid arthritis (MJRA) progressed to polyarticular disease. However, 15 patients maintained monarticular disease for years, with some experiencing chronic iridocyclitis, necessitating regular eye exams for those with antinuclear antibodies.
Area of Science:
- Pediatrics
- Rheumatology
- Ophthalmology
Background:
- Monarticular juvenile rheumatoid arthritis (MJRA) is a specific subtype of juvenile idiopathic arthritis.
- Understanding the long-term course and potential complications of MJRA is crucial for effective patient management.
Purpose of the Study:
- To investigate the disease progression and long-term outcomes in children diagnosed with MJRA.
- To identify risk factors for disease spread and associated complications like chronic iridocyclitis.
Main Methods:
- Retrospective analysis of 22 children diagnosed with MJRA.
- Tracking disease activity and joint involvement over time (up to 16 years).
- Correlation of clinical findings, including antinuclear antibody status and synovial biopsy results, with disease course.
Main Results:
- Seven out of 22 children (32%) developed polyarticular disease within 3.5 years.
- Fifteen children (68%) remained monarticular for 1-16 years (mean 6 years).
- Chronic iridocyclitis occurred in 3 of 5 boys, with 2 testing positive for antinuclear antibodies.
Conclusions:
- MJRA can remain localized in a majority of children, but a significant subset progresses to polyarticular involvement.
- Children with MJRA and antinuclear antibodies require vigilant ophthalmic monitoring due to the risk of chronic iridocyclitis.
- Synovial biopsy is mainly useful for differential diagnosis, with limited predictive value for disease course.
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