{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,8]],"date-time":"2026-09-08T01:11:16Z","timestamp":1788829876932,"version":"build-2803163510"},"reference-count":23,"publisher":"Oxford University Press (OUP)","issue":"4","license":[{"start":{"date-parts":[[2025,9,16]],"date-time":"2025-09-16T00:00:00Z","timestamp":1757980800000},"content-version":"vor","delay-in-days":258,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2025,9,13]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:sec>\n                  <jats:title>Objective<\/jats:title>\n                  <jats:p>To determine the prevalence of bone marrow oedema (BME) in osteitis condensans ilii (OCI) on MRI of the sacroiliac joint (SIJ). Secondary objectives include comparisons of socio-demographic characteristics, prevalence of other imaging features (MRI, CT scan), and low back pain in patients with OCI with those in a sex- and age-matched control group.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Methods<\/jats:title>\n                  <jats:p>A total of 34 patients with OCI, including 29 with MRI, were recruited for retrospective analysis. The SIJ MRIs were retrospectively analysed by two readers. A sex- and age-matched control group of patients without SIJ disorders was included. In both groups, the presence of structural bone abnormalities was assessed by CT scan analysis, and socio-demographic data were obtained by telephone questionnaire. A longitudinal analysis was conducted on patients who had undergone multiple imaging examinations.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Results<\/jats:title>\n                  <jats:p>All patients were female with a mean age of 34\u2009years. BME was observed in 66% (19\/29) of OCI patients. BME in OCI was mainly located in the anterior-middle quadrant (43.48%). OCI patients had significantly more than one delivery (P\u2009=\u20090.0094, McNemar test), even if OCI was found in four nulliparous patients (15%). OCI patients experienced significantly more pain (P\u2009=\u20090.0026, McNemar test).<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Conclusion<\/jats:title>\n                  <jats:p>OCI is an entity found in both pregnant and non-pregnant young women. SIJ BME was found in two-thirds of OCI patients. OCI is a significant cause of BME and should be carefully considered by clinicians when dealing with a patient with low back pain in order to avoid misdiagnosing spondyloarthritis in the presence of BME of the SIJ.<\/jats:p>\n               <\/jats:sec>","DOI":"10.1093\/rap\/rkaf108","type":"journal-article","created":{"date-parts":[[2025,9,19]],"date-time":"2025-09-19T21:37:12Z","timestamp":1758317832000},"source":"Crossref","is-referenced-by-count":2,"title":["Bone marrow oedema of the sacroiliac joint without spondyloarthritis: a retrospective study of 34 cases of osteitis condensans ilii"],"prefix":"10.1093","volume":"9","author":[{"given":"Sabine","family":"Guehery","sequence":"first","affiliation":[{"name":"Department of Radiology, Toulouse University Hospital, Paul Sabatier University, Toulouse III , Toulouse,","place":["France"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Julian","family":"Plenard","sequence":"additional","affiliation":[{"name":"Department of Rheumatology, Toulouse University Hospital, Centre d\u2019Investigation Clinique de Toulouse CIC1436, Inserm, Paul Sabatier University, Toulouse III , Toulouse,","place":["France"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fran\u00e7ois","family":"Lafourcade","sequence":"additional","affiliation":[{"name":"Department of Radiology, Toulouse University Hospital, Paul Sabatier University, Toulouse III , Toulouse,","place":["France"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Franck","family":"Lapegue","sequence":"additional","affiliation":[{"name":"Department of Radiology, Toulouse University Hospital, Paul Sabatier University, Toulouse III , Toulouse,","place":["France"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Laurent","family":"Zabraniecki","sequence":"additional","affiliation":[{"name":"Department of Rheumatology, Toulouse University Hospital, Centre d\u2019Investigation Clinique de Toulouse CIC1436, Inserm, Paul Sabatier University, Toulouse III , Toulouse,","place":["France"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Arnaud","family":"Constantin","sequence":"additional","affiliation":[{"name":"Department of Rheumatology, Toulouse University Hospital, Centre d\u2019Investigation Clinique de Toulouse CIC1436, Inserm, Paul Sabatier University, Toulouse III , Toulouse,","place":["France"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nicolas","family":"Sans","sequence":"additional","affiliation":[{"name":"Department of Radiology, Toulouse University Hospital, Paul Sabatier University, Toulouse III , Toulouse,","place":["France"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Adeline","family":"Ruyssen Witrand","sequence":"additional","affiliation":[{"name":"Department of Rheumatology, Toulouse University Hospital, Centre d\u2019Investigation Clinique de Toulouse CIC1436, Inserm, Paul Sabatier University, Toulouse III , Toulouse,","place":["France"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marie","family":"Faruch Bilfeld","sequence":"additional","affiliation":[{"name":"Department of Radiology, Toulouse University Hospital, Paul Sabatier University, Toulouse III , Toulouse,","place":["France"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2025,9,16]]},"reference":[{"key":"2025100420070066300_rkaf108-B1","first-page":"503","article-title":"Osteites condensantes an etiologic inconnue","volume":"10","author":"Sicard","year":"1926","journal-title":"J de Radiol Et d\u2019Electrol"},{"key":"2025100420070066300_rkaf108-B2","doi-asserted-by":"crossref","first-page":"295","DOI":"10.1093\/rheumatology\/35.3.295-a","article-title":"Osteitis condensans ilii","volume":"35","author":"Olivieri","year":"1996","journal-title":"Br J 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