ArticleClinical rheumatology2025
Patterns and prevalence of sacroiliac joint bone marrow edema during pregnancy: A retrospective analysis.
Article in Clinical rheumatology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
introductionPregnancy is associated with the presence of bone marrow edema (BME) in the sacroiliac joints during the postpartum period. The aim of this study is to evaluate the frequency and localization of sacroiliac joint edema during pregnancy.
methodsThis retrospective, monocentric study included pregnant women who underwent pelvic MRI for any reason during their pregnancy. Women with a history of chronic inflammatory rheumatic diseases and minors were excluded. Two experienced readers independently evaluated the presence of bone marrow edema (BME) using a two-plane assessment method: axial and semi-coronal oblique views. Each sacroiliac joint was divided into four quadrants per slice and the presence of deep lesion was also scored.
resultsWe included 28 women with a median age of 30.0 [27.0-33.0] years and a median gestational age of 27.5 [25.5-32.0] weeks of amenorrhea. Ten women (36%) presented with at least one BME in a sacroiliac joint, and 3 of these women had bilateral sacroiliac joint BME. BME was observed in 12 of 13 cases (92%) in the lower part of the sacroiliac joint. In 8 cases (66%), the edema was present on both the iliac and sacral sides, in 1 case (8%) only on the iliac side, and in 4 cases (33%) only on the sacral side. There were no correlation between gestational age and the presence of BME.
conclusionBME in the sacroiliac joint is common during pregnancy and is typically located in the anterior and inferior parts of the joint, similar to the postpartum period.
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