{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,17]],"date-time":"2026-07-17T20:07:57Z","timestamp":1784318877146,"version":"3.55.0"},"reference-count":28,"publisher":"Oxford University Press (OUP)","license":[{"start":{"date-parts":[[2026,6,26]],"date-time":"2026-06-26T00:00:00Z","timestamp":1782432000000},"content-version":"am","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>To determine the prevalence of radiographic sacroiliitis (RSI) \u2013 a classification feature of spondyloarthritis \u2013 and to identify associated factors in Japanese patients with inflammatory bowel disease.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This retrospective study included 880 patients with ulcerative colitis or Crohn\u2019s disease (CD) who underwent abdominopelvic computed tomography at an inflammatory bowel disease centre. Sacroiliac joints were evaluated using a validated scoring system. RSI was defined as a total erosion score \u22653 or the presence of sacroiliac joint ankylosis. Multivariate logistic regression analysis identified factors associated with RSI.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>RSI was identified in 98 patients (11%), including 41 patients (5%) with complete ankylosis. CD [vs. ulcerative colitis; odds ratio (OR) 2.14; 95% confidence interval (CI), 1.17\u20133.89], male sex (OR 3.85; 95% CI 1.96\u20137.56), and older age (OR 1.07 per year; 95% CI 1.05\u20131.09) were independently associated with RSI. In subgroup analysis, obesity was associated with RSI in CD (OR 2.15; 95% CI 1.01\u20134.59).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>RSI was present in ~10% of Japanese patients with inflammatory bowel disease. Evaluation of sacroiliac joints on routine abdominopelvic computed tomography may help identify patients warranting further evaluation for coexisting spondyloarthritis, particularly in older men with CD.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1093\/mr\/roag054","type":"journal-article","created":{"date-parts":[[2026,6,24]],"date-time":"2026-06-24T11:58:10Z","timestamp":1782302290000},"source":"Crossref","is-referenced-by-count":0,"title":["Prevalence of and factors associated with radiographic sacroiliitis in Japanese patients with inflammatory bowel disease: A computed tomography\u2013based study"],"prefix":"10.1093","author":[{"given":"Yusuke","family":"Ohno","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery and Rheumatology, Nagoya University Graduate School of Medicine , Nagoya, Aichi 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,","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mochihito","family":"Suzuki","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery and Rheumatology, Nagoya University Graduate School of Medicine , Nagoya, Aichi ,","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tsunaki","family":"Sawada","sequence":"additional","affiliation":[{"name":"Department of Endoscopy, Nagoya University Hospital , Nagoya, Aichi ,","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kenji","family":"Kishimoto","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery and Rheumatology, Nagoya University Graduate School of Medicine , Nagoya, Aichi ,","place":["Japan"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ryo","family":"Sato","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery and Rheumatology, Nagoya 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