Spine abnormalities associated with bone edema on sacroiliac joints MRI in patients with non-inflammatory chronic back pain - 19/11/22
, Anthony Cole a, 1, Alexandre Bellier b, Pierre Chapuis c, Xavier Romand a, d, Laure Gossec e, f, Marie-Martine Lefèvre-Colau g, Violaine Foltz f, Pascal Richette h, i, Philippe Dieude j, Anna Molto k, l, 2, Athan Baillet a, b, 2Highlights |
• | Magnetic sacroiliitis, as defined by ASAS, is possible in patient with mechanical chronic back pain. |
• | Non-inflammatory abnormalities are five times more frequent in case of magnetic sacroiliitis. |
• | Mechanical bone marrow edema can be found throughout the sacroiliac joint. |
Abstract |
Objective |
To investigate whether bone marrow edema (BME) fulfilling the ASAS definition of magnetic resonance imaging (MRI) sacroiliitis is associated with non-inflammatory spine abnormalities in patients with definite mechanical chronic back pain (CBP).
Methods |
Patients with definite mechanical CBP, according to the physician, started before the age of 45 and be lasting for more than 3months but less than 3years underwent a protocolized MRI and radiographs of sacroiliac joint (SIJ) and spine. BME and structural changes were scored, by three readers, for SIJ as well as non-inflammatory abnormalities for spine, including degenerative lesions and static disorders. Univariate analysis by Chi2 test was performed to search a statistical association between BME fulfilling the ASAS definition of MRI sacroiliitis and the presence of at least one non-inflammatory spine abnormality.
Results |
A total of 94 patients were analyzed, 27 (29%) patients had BME and 16 (17%) patients had BME fulfilling the ASAS definition of MRI sacroiliitis; 86 (91.5%) patients had at least one non-inflammatory spine abnormality which are associated into 3 distinct clusters. BME was slightly more frequent at the lower and posterior part of the SIJ. MRI sacroiliitis was associated with interspinous bursitis, facet joint effusion and lateral spinal deviation and was more likely in patients with at least one non-inflammatory spine abnormality (OR: 4.96, 95% CI [1.47; 16.72]).
Conclusions |
BME fulfilling the ASAS definition of MRI sacroiliitis is significantly associated with non-inflammatory spine abnormalities in patients with mechanical CBP.
Il testo completo di questo articolo è disponibile in PDF.Keywords : Mechanical chronic back pain, Mechanical sacroiliitis, MRI
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Vol 89 - N° 6
Articolo 105436- novembre 2022 Ritorno al numero
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