Renson T, Depicker A, De Craemer AS, et al. - Through a prospective study with repeated MRI, researchers sought to delineate the connection between pregnancy/delivery and pelvic stress. Outcomes were matched with maternal, child and birth features. For this analysis, 35 women had a baseline MRI-sacroiliac joint (SIJ) within the first 10 days after giving birth. Using the Spondyloarthritis Research Consortium of Canada method, bone marrow oedema (BMO) and structural lesions were scored by three trained readers. In women immediately postpartum, a remarkably high incidence of sacroiliac BMO exists. The data show a need for a waiting period of at least six months to perform an MRI-SIJ in women with back pain in the postpartum. This research also underlines the significance of interpreting the results of the MRI-SIJ in the appropriate clinical context.