Abstract
Objectives
To reveal the differences by comparing the magnetic resonance imaging (MRI) findings of patients with clinically symptomatic sacroiliitis with those undergoing sacroiliac imaging for other reasons using the Canadian Spondyloarthritis Research Consortium-Sacroiliac Inflammatory Scoring System (SPARCC-SIS).
Methods
In this retrospective single-center study, sacroiliac MRIs performed between 2017 and 2023 were evaluated from the database. The SPARCC-SIS scoring system is used to evaluate and grade the inflammation of the sacroiliac joints. Mild inflammation is indicated by a score below 24, moderate by a score of 24–48, and severe by a score above 49. Additionally, structural defects of the sacroiliac joint, such as erosion, sclerosis, and ankylosis, were observed. After MRI evaluation, clinically symptomatic (group 1) and non-symptomatic (group 2) patients were divided into two groups. The clinical and laboratory findings of the patients and MRI findings were compared. The patient’s age, gender, clinical information from hospital records, acute phase reactants (APRs), and the presence of the Human Leukocyte Antigen (HLA-B27) gene (if applicable) were thoroughly recorded.
Results
One hundred thirty-six children who performed sacroiliac MRI for any indication were included in the study. The APRs positivity, presence of HLA-B27, and SPARCC scoring system were significantly higher in 24 patients with clinical sacroiliitis (group 1) than in 112 patients without sacroiliitis (group 2). In our study, the most common MRI findings in children were bone marrow edema, capsulitis, synovitis, and erosion, while chronic structural changes such as sclerosis and ankylosing were rare.
Conclusion
In this study, the SPARCC scoring method, which shows the severity of sacroiliac joint inflammation, correlates with the clinical diagnosis of sacroiliitis. In cases with suspected sacroiliitis, except for extraordinary reasons, it can be evaluated with MRI without contrast material and can be graded to guide the clinician in treatment and approach.
Key points |
• Since the SPARCC scoring method, which shows the severity of sacroiliac joint inflammation, will guide the clinician, its use in the pediatric population will be beneficial and feasible. • Non-contrast scans are often sufficient to assess inflammation in the sacroiliac joint. In the evaluation of sacroiliac MRI in children, evaluation can be made without contrast. • Since chronic changes in the sacroiliac joint are very rare in children, evaluation with radiography or CT may not be needed. |
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Bozbeyoğlu, S.G., Öztürk, K. Effective diagnosis of sacroiliitis in children: evaluating magnetic resonance imaging with the Canadian scoring system. Clin Rheumatol 43, 2125–2131 (2024). https://doi.org/10.1007/s10067-024-06979-4
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DOI: https://doi.org/10.1007/s10067-024-06979-4