Long-term evolution of postpartum sacroiliac bone marrow oedema: a 5-year longitudinal follow-up study
Authors' conclusion
In postpartum women, no significant development of structural MRI lesions was observed 5 years after a single delivery, despite the presence of BME in a significant number of individuals postpartum and at follow-up.
Study context
- Population
- Women after an uncomplicated vaginal delivery, MRI-SIJ postpartum and 5 years later
- Participants
- 19 women
- Outcome
- Evolution of BME on MRI-SIJ and potential development of structural lesions
- Follow-up
- 5 years
Methodological details5-year follow-up
- 5-year follow-up
Main finding
As reported in the abstract
BME after 5 years
32%
6/19
Met ASAS definition of a positive MRI-SIJ, irrespective of subsequent pregnancies
3
Observational data: associations, not effects.
Further findings
Association of inflammatory back pain (IBP) with Spondyloarthritis Research Consortium of Canada (SPARCC) score and with ASAS-positive MRI at baseline
- No association between IBP and SPARCC score
- P = 0.24
- No association between IBP and positive MRI (ASAS) at baseline
- P = 0.64
- Only one subject reported IBP; six reported back pain
Structural lesions and subsequent pregnancies · year 5
- New delivery during follow-up linked to total number of structural lesions at year 5
- Mean weight gain across all pregnancies correlated with sclerosis
Detection of sclerosis and erosions: synthetic CT vs T1-weighted MRI
- Sclerosis and erosions more frequently detected by synthetic CT than T1-weighted MRI
Original publication
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