{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T15:49:33Z","timestamp":1777477773189,"version":"3.51.4"},"reference-count":29,"publisher":"SAGE Publications","issue":"5","license":[{"start":{"date-parts":[[2013,6,1]],"date-time":"2013-06-01T00:00:00Z","timestamp":1370044800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/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":[[2013,6]]},"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Recent studies suggest that even a mild slip of the femoral capital epiphysis may lead to later degenerative changes when undiagnosed. However, little is written on the accuracy of radiographic measurements used to diagnose a slip at skeletal maturity.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>To assess the accuracy of radiographic measurements commonly used for assessment of previously slipped capital femoral epiphysis (SCFE) at skeletal maturity.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Material and Methods<\/jats:title>\n                    <jats:p>All children born at our hospital during 1989 ( n = 4006) were invited to participate in a follow-up hip trial at age 18\u201319 years. Erect pelvic anteroposterior and supine frog leg radiographs were obtained in a standardized fashion. For the purpose of this study, we selected a subset of 100 radiographs. To balance the data-set, we added another 28 radiographs from skeletal mature patients diagnosed and operated for a SCFE. Two observers independently measured Southwick's head-shaft angle, Murray's tilt-index, and the femoral head-neck angle. Intra- and inter-observer variation was assessed using the mean difference, with its 95% limits of agreement.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>A high percentage of the images (40%), particularly for the measurement of the Southwick's head-shaft angle, were judged immeasurable by at least one observer. Mean head-shaft angle was 11.0\u00b0 (SD = 17.0), head-neck angle was 8.0\u00b0 (SD = 12.0), and Murray's tilt-index was 1.18 (SD = 0.4). For head-shaft angle, the mean difference between measurements (Observer 2) was 0.8\u00b0 (SD = 2.7\u00b0, 95% limits of agreement \u20134.5\u00b0 to 6.1\u00b0), while the corresponding figure for the Murray's tilt-index was 0.02 (SD = 0.08, 95% limits of agreement \u20130.18 to 0.14), and for the head-neck angle 0.9\u00b0 (SD = 4.0, 95% limits of agreement of \u20136.9\u00b0 to 8.7\u00b0). Slightly higher variance was seen for Observer 1 and between the two observers.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Common radiographic measurements for the assessment of a previously slipped capital femoral epiphysis are relatively inaccurate in skeletal mature adolescents, in particular between observers (inter-observer), but also for the same observer (intra-observer). Our results underscore the importance of thorough standardization for both image and measurement technique when used in a clinical setting.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/0284185112474918","type":"journal-article","created":{"date-parts":[[2013,4,10]],"date-time":"2013-04-10T20:26:22Z","timestamp":1365625582000},"page":"587-591","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":9,"title":["Intra- and inter-observer repeatability of radiographic measurements for previously slipped capital femoral epiphysis at skeletal maturity"],"prefix":"10.1177","volume":"54","author":[{"given":"Trude G","family":"Lehmann","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery, Haukeland University Hospital, Bergen"},{"name":"Department of Surgical Sciences, University of Bergen, Bergen"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nils","family":"Vetti","sequence":"additional","affiliation":[{"name":"Department of Radiology, Haukeland University Hospital, Bergen, Norway"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lene B","family":"Laborie","sequence":"additional","affiliation":[{"name":"Department of Surgical Sciences, University of Bergen, Bergen"},{"name":"Department of Radiology, Haukeland University Hospital, Bergen, Norway"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ingvild \u00d8","family":"Enges\u00e6ter","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Haukeland University Hospital, Bergen"},{"name":"Department of Surgical Sciences, University of Bergen, Bergen"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lars B","family":"Enges\u00e6ter","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Haukeland University Hospital, Bergen"},{"name":"Department of Surgical Sciences, University of Bergen, Bergen"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Karen","family":"Rosendahl","sequence":"additional","affiliation":[{"name":"Department of Surgical Sciences, University of Bergen, Bergen"},{"name":"Department of Radiology, Haukeland University Hospital, Bergen, Norway"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2013,6,1]]},"reference":[{"key":"AR-474918C1","first-page":"473","volume":"57","author":"Loder RT","year":"2008","journal-title":"Instr Course Lect"},{"key":"AR-474918C2","doi-asserted-by":"publisher","DOI":"10.1055\/s-2004-830406"},{"key":"AR-474918C3","doi-asserted-by":"publisher","DOI":"10.3109\/17453674.2011.641105"},{"key":"AR-474918C4","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.70B2.3346283"},{"key":"AR-474918C5","doi-asserted-by":"publisher","DOI":"10.1097\/01202412-199907000-00016"},{"key":"AR-474918C6","first-page":"3","volume":"10","author":"Morscher E","year":"1968","journal-title":"Reconstr Surg Traumatol"},{"key":"AR-474918C7","doi-asserted-by":"publisher","DOI":"10.1097\/00003086-199601000-00003"},{"key":"AR-474918C8","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-196749050-00001"},{"key":"AR-474918C9","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-198163010-00011"},{"key":"AR-474918C10","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-199173050-00004"},{"key":"AR-474918C11","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-199274060-00002"},{"key":"AR-474918C12","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-200412000-00011"},{"key":"AR-474918C13","doi-asserted-by":"publisher","DOI":"10.1097\/01.bpo.0000158811.29602.a5"},{"key":"AR-474918C14","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-195234010-00033"},{"key":"AR-474918C15","doi-asserted-by":"publisher","DOI":"10.1259\/0007-1285-38-455-810"},{"key":"AR-474918C16","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.58B2.932079"},{"key":"AR-474918C17","doi-asserted-by":"publisher","DOI":"10.1097\/BPO.0b013e3181558bd9"},{"key":"AR-474918C18","first-page":"662","volume":"54","author":"Ordeberg G","year":"1983","journal-title":"Acta Orthop Scand"},{"key":"AR-474918C19","doi-asserted-by":"publisher","DOI":"10.1007\/s00247-002-0697-4"},{"key":"AR-474918C20","doi-asserted-by":"publisher","DOI":"10.1097\/01241398-199101000-00003"},{"key":"AR-474918C21","doi-asserted-by":"publisher","DOI":"10.1097\/bpo.0b013e31814256af"},{"key":"AR-474918C22","first-page":"33","volume":"7","author":"Loder RT","year":"1999","journal-title":"J Orthop Surg"},{"key":"AR-474918C23","first-page":"47","volume":"94","author":"Rosendahl K","year":"1994","journal-title":"Pediatrics"},{"key":"AR-474918C24","doi-asserted-by":"publisher","DOI":"10.3109\/17453674.2011.579520"},{"key":"AR-474918C25","first-page":"1","volume":"77","author":"Jacobsen S","year":"2006","journal-title":"Studies in radiology and clinical epidemiology. Acta Orthop Suppl"},{"key":"AR-474918C26","first-page":"39","volume":"119","author":"Tonnis D","year":"1976","journal-title":"Clin Orthop Relat Res"},{"key":"AR-474918C27","doi-asserted-by":"publisher","DOI":"10.1002\/uog.122"},{"key":"AR-474918C28","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(86)90837-8"},{"key":"AR-474918C29","first-page":"165","volume":"14","author":"Carney BT","year":"2005","journal-title":"J Surg Orthop"}],"container-title":["Acta Radiologica"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/0284185112474918","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/0284185112474918","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/0284185112474918","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T13:59:44Z","timestamp":1777384784000},"score":1,"resource":{"primary":{"URL":"http:\/\/journals.sagepub.com\/doi\/10.1177\/0284185112474918"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2013,6]]},"references-count":29,"journal-issue":{"issue":"5","published-print":{"date-parts":[[2013,6]]}},"alternative-id":["10.1177\/0284185112474918"],"URL":"https:\/\/doi.org\/10.1177\/0284185112474918","relation":{},"ISSN":["0284-1851","1600-0455"],"issn-type":[{"value":"0284-1851","type":"print"},{"value":"1600-0455","type":"electronic"}],"subject":[],"published":{"date-parts":[[2013,6]]}}}