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Article

MRI Findings in Hip in Juvenile Idiopathic Arthritis

by
Monika Ostrowska
1,
Piotr Gietka
2,
Małgorzata Mańczak
3,
Emil Michalski
1,* and
Iwona Sudoł-Szopińska
1
1
Department of Radiology, National Institute of Geriatrics, Rheumatology and Rehabilitation, 02-637 Warsaw, Poland
2
Clinic of Paediatric Rheumatology, National Institute of Geriatrics, Rheumatology and Rehabilitation, 02-637 Warsaw, Poland
3
Department of Gerontology, Public Health and Didactics, National Institute of Geriatrics, Rheumatology and Rehabilitation, 02-637 Warsaw, Poland
*
Author to whom correspondence should be addressed.
J. Clin. Med. 2021, 10(22), 5252; https://doi.org/10.3390/jcm10225252
Submission received: 16 September 2021 / Revised: 24 October 2021 / Accepted: 6 November 2021 / Published: 11 November 2021
(This article belongs to the Special Issue Diagnostic Imaging of Arthritis)

Abstract

The aim of this study was to evaluate if magnetic resonance imaging allows hip arthritis in JIA to be differentiated from hip arthralgia of unknown etiology in juveniles clinically suspected for hip arthritis. This was a retrospective observational study which included 97 children with clinically suspected hip arthritis. Each hip was assessed and scored in MRI for signs of active and destructive inflammatory lesions and developmental lesions. MRI findings between JIA-confirmed patients and without final diagnosis of JIA were compared and the MRI summarized score was calculated, as the sum of scorings of all 24 hip lesions in an individual patient (i.a., effusion, synovitis, bone marrow edema, enthesitis). MRI showed at least one lesion in the majority of patients (95 patients; 98%). Effusion was the most common feature, followed by bone marrow oedema and synovitis. All lesions were more common in patients with a final diagnosis of JIA, especially synovitis and enthesitis (p = 0.037 and p = 0.047). The MRI summarized score was significantly higher in the JIA group than the non-JIA group: 3 (2–5) vs. 2 (2–2), respectively, p = 0.002. Using a cut-off score of 6, the MRI summarized score showed 25% sensitivity and 100% specificity indicating a good ability in discriminating hip arthritis during JIA from non-JIA patients. MRI allows hip arthritis in JIA to be differentiated from hip arthralgia of unknown etiology with good specificity, thus, may be helpful in confirming the diagnosis of JIA.
Keywords: arthritis; juvenile; hip; arthralgia; magnetic resonance imaging arthritis; juvenile; hip; arthralgia; magnetic resonance imaging

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MDPI and ACS Style

Ostrowska, M.; Gietka, P.; Mańczak, M.; Michalski, E.; Sudoł-Szopińska, I. MRI Findings in Hip in Juvenile Idiopathic Arthritis. J. Clin. Med. 2021, 10, 5252. https://doi.org/10.3390/jcm10225252

AMA Style

Ostrowska M, Gietka P, Mańczak M, Michalski E, Sudoł-Szopińska I. MRI Findings in Hip in Juvenile Idiopathic Arthritis. Journal of Clinical Medicine. 2021; 10(22):5252. https://doi.org/10.3390/jcm10225252

Chicago/Turabian Style

Ostrowska, Monika, Piotr Gietka, Małgorzata Mańczak, Emil Michalski, and Iwona Sudoł-Szopińska. 2021. "MRI Findings in Hip in Juvenile Idiopathic Arthritis" Journal of Clinical Medicine 10, no. 22: 5252. https://doi.org/10.3390/jcm10225252

APA Style

Ostrowska, M., Gietka, P., Mańczak, M., Michalski, E., & Sudoł-Szopińska, I. (2021). MRI Findings in Hip in Juvenile Idiopathic Arthritis. Journal of Clinical Medicine, 10(22), 5252. https://doi.org/10.3390/jcm10225252

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