{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,17]],"date-time":"2026-10-17T21:27:20Z","timestamp":1792272440788,"version":"4.4.0"},"reference-count":18,"publisher":"SAGE Publications","issue":"8","license":[{"start":{"date-parts":[[2021,8,3]],"date-time":"2021-08-03T00:00:00Z","timestamp":1627948800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Acta Radiol"],"published-print":{"date-parts":[[2022,8]]},"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Recently, a scoring system to grade sacroiliac joint (SIJ) degeneration using computed tomography (CT) scans was described. No independent evaluation has determined the inter- and intra-observer agreement using this scheme.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>To perform an independent inter- and intra-observer agreement assessment using the Eno classification and determining gas in the SIJ.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Material and Methods<\/jats:title>\n                    <jats:p>We studied 64 patients aged \u226560 years who were evaluated with abdominal and pelvic computed tomography scans. Six physicians (three orthopaedic spine surgeons and three musculoskeletal radiologists) assessed axial images to grade SIJ degeneration into grade 0 (normal), grade 1 (mild degeneration), grade 2 (significant degeneration), and grade 3 (ankylosis). We also evaluated the agreement assessing the presence of gas in the SIJ. After a four-week interval, all cases were presented in a random sequence for repeat assessment. We determined the agreement using the kappa (\u03ba) or weighted kappa coefficient (w\u03ba).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>The inter-observer agreement was moderate (w\u03ba\u2009=\u20090.50 [0.44\u20130.56]), without differences among surgeons (w\u03ba\u2009=\u20090.53 [0.45\u20130.61]) and radiologists (w\u03ba\u2009=\u20090.49 [0.42\u20130.57]). The agreement evaluating the presence of gas was also moderate (\u03ba\u2009=\u20090.45 [0.35\u20130.54]), but radiologists obtained better agreement (\u03ba\u2009=\u20090.61 [0.48\u20130.72]) than surgeons (\u03ba\u2009=\u20090.29 [0.18\u20130.39]). The intra-observer agreement using the classification was substantial (w\u03ba\u2009=\u20090.79 [0.76\u20130.82]), without differences comparing surgeons (w\u03ba\u2009=\u20090.75 [0.70\u20130.80]) and radiologists (w\u03ba\u2009=\u20090.83 [0.79\u20130.87]). The intra-rater agreement evaluating gas was substantial (\u03ba\u2009=\u20090.77 [0.72\u20130.82]), without differences between surgeons (\u03ba\u2009=\u20090.71 [0.63\u20130.78]) and radiologists (\u03ba\u2009=\u20090.84 [0.78\u20130.90]).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Given the only moderate agreement obtained using the Eno classification, it does not seem adequate to be used in clinical practice or in research.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/02841851211029082","type":"journal-article","created":{"date-parts":[[2021,8,3]],"date-time":"2021-08-03T09:25:27Z","timestamp":1627982727000},"page":"1071-1076","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":1,"title":["An independent inter- and intra-observer agreement assessment of the Eno classification of sacroiliac joint degeneration"],"prefix":"10.1177","volume":"63","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1757-1144","authenticated-orcid":false,"given":"Julio","family":"Urrutia","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery, School of Medicine, Pontificia Universidad Catolica de Chile, Santiago, Chile"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gaston","family":"Camino-Willhuber","sequence":"additional","affiliation":[{"name":"Institute of Orthopedics \u201cCarlos E. Ottolenghi,\u201d Hospital Italiano de Buenos Aires, Buenos Aires, Argentina"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nelson","family":"Astur","sequence":"additional","affiliation":[{"name":"Santa Casa de Misericordia de S\u00e3o Paulo, Sao Paulo, Brazil and Hospital Israelita Albert Einstein, Morumbi, Sao Paulo, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marcelo","family":"Valacco","sequence":"additional","affiliation":[{"name":"Hospital Churruca Visca, Buenos Aires, Argentina"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Matias","family":"Borensztein","sequence":"additional","affiliation":[{"name":"Department of Radiology, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Osvaldo","family":"Velan","sequence":"additional","affiliation":[{"name":"Department of Radiology, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pablo","family":"Cikutovic","sequence":"additional","affiliation":[{"name":"Department of Radiology, School of Medicine, Pontificia Universidad Catolica de Chile, Santiago, Chile"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2021,8,3]]},"reference":[{"key":"bibr1-02841851211029082","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.N.01101"},{"key":"bibr2-02841851211029082","doi-asserted-by":"publisher","DOI":"10.1148\/radiology.151.2.6709915"},{"key":"bibr3-02841851211029082","doi-asserted-by":"publisher","DOI":"10.1007\/s00586-019-06160-5"},{"key":"bibr4-02841851211029082","doi-asserted-by":"publisher","DOI":"10.1007\/s776-002-8407-1"},{"key":"bibr5-02841851211029082","doi-asserted-by":"publisher","DOI":"10.1007\/s00586-016-4438-z"},{"key":"bibr6-02841851211029082","doi-asserted-by":"publisher","DOI":"10.1016\/j.jclinepi.2011.10.019"},{"key":"bibr7-02841851211029082","doi-asserted-by":"publisher","DOI":"10.2307\/2529310"},{"key":"bibr8-02841851211029082","doi-asserted-by":"publisher","DOI":"10.1016\/j.clinimag.2010.10.011"},{"key":"bibr9-02841851211029082","doi-asserted-by":"publisher","DOI":"10.4184\/asj.2016.10.4.762"},{"key":"bibr10-02841851211029082","doi-asserted-by":"publisher","DOI":"10.1002\/ca.22334"},{"key":"bibr11-02841851211029082","doi-asserted-by":"publisher","DOI":"10.1016\/j.crad.2017.03.006"},{"key":"bibr12-02841851211029082","doi-asserted-by":"publisher","DOI":"10.1097\/BRS.0000000000000656"},{"key":"bibr13-02841851211029082","doi-asserted-by":"publisher","DOI":"10.1097\/BRS.0000000000001302"},{"key":"bibr14-02841851211029082","doi-asserted-by":"publisher","DOI":"10.1097\/00005131-199710000-00001"},{"key":"bibr15-02841851211029082","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.17.00245"},{"key":"bibr16-02841851211029082","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-199072030-00013"},{"key":"bibr17-02841851211029082","doi-asserted-by":"publisher","DOI":"10.1056\/NEJM199407143310201"},{"key":"bibr18-02841851211029082","first-page":"401","volume":"19","author":"Audige L","year":"2005","journal-title":"J Orthop Trauma"}],"container-title":["Acta Radiologica"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/02841851211029082","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/02841851211029082","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/02841851211029082","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T15:27:07Z","timestamp":1777390027000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/02841851211029082"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,8,3]]},"references-count":18,"journal-issue":{"issue":"8","published-print":{"date-parts":[[2022,8]]}},"alternative-id":["10.1177\/02841851211029082"],"URL":"https:\/\/doi.org\/10.1177\/02841851211029082","relation":{},"ISSN":["0284-1851","1600-0455"],"issn-type":[{"value":"0284-1851","type":"print"},{"value":"1600-0455","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,8,3]]}}}