{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T03:45:16Z","timestamp":1789962316615,"version":"4.0.1"},"reference-count":23,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2019,11,14]],"date-time":"2019-11-14T00:00:00Z","timestamp":1573689600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Orthopaedic Surgery"],"published-print":{"date-parts":[[2019,12]]},"abstract":"<jats:sec><jats:title>Objective<\/jats:title><jats:p>To explore the difference in pelvic tilt and hip joint parameters with developmental dysplasia of the hip (DDH) comparing the anteroposterior (AP) pelvic radiographs taken in supine and standing positions.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A prospective study of DDH patients undergoing Bernese periacetabular osteotomy (PAO) was conducted. AP pelvic radiographs were taken in supine and standing positions before surgery The pelvic tilt and hip joint parameters from the two radiographs were compared. Contrast parameters included the distance between the pubic symphysis to sacrococcygeal distance (PSSC), lateral center\u2010edge angle (LCEA), T\u00f6nnis angle (TA), and angle of sharp (SA).<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>A total of 110 young DDH patients were enrolled, including 32 men and 78 women, aged 18\u201349\u2009years. The male PSSC was 45.63 \u00b1\u200913.69\u2009mm in supine position and 36.91 \u00b1\u200912.33\u2009mm in standing position (<jats:italic>P<\/jats:italic> &lt;\u20090.05). The female PSSC was 56.76 \u00b1\u200913.54\u2009mm in supine position and 48.62 \u00b1\u200915.44\u2009mm in standing position (<jats:italic>P<\/jats:italic> &lt;\u20090.05). In this study, LCEA &lt;20\u00b0 in AP pelvic radiographs in the supine position was found in 52 men and 135 women. For male patients, in supine position and standing position, LCEA were 5.51\u00b0\u2009\u00b1\u200911.88\u00b0 and 4.45\u00b0\u2009\u00b1\u200912.22\u00b0, respectively (<jats:italic>P<\/jats:italic> &lt;\u20090.05); TA were 20.20\u00b0\u2009\u00b1\u20099.63\u00b0 and 21.30\u00b0 \u00b1\u20099.97\u00b0, respectively (<jats:italic>P<\/jats:italic> &lt;\u20090.05), and SA comparison showed no significant differences. For female patients, in supine position and standing position, LCEA were 3.07\u00b0\u2009\u00b1\u200912.07\u00b0 and 1.69\u00b0\u2009\u00b1\u200912.11\u00b0, respectively (<jats:italic>P<\/jats:italic> &lt;\u20090.05), TA were 22.62\u00b0\u2009\u00b1\u20099.31\u00b0 and 23.82\u00b0\u2009\u00b1\u20099.45\u00b0, respectively (<jats:italic>P<\/jats:italic> &lt;\u20090.05), and SA were 48.01\u00b0\u2009\u00b1\u20094.68\u00b0 and 48.49\u00b0\u2009\u00b1\u20094.74\u00b0, respectively (<jats:italic>P<\/jats:italic> &lt;\u20090.05).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Compared with the supine position, the young DDH patients have pelvic tilt backward and a decrease in hip coverage in the standing position.<\/jats:p><\/jats:sec>","DOI":"10.1111\/os.12574","type":"journal-article","created":{"date-parts":[[2019,11,14]],"date-time":"2019-11-14T08:28:03Z","timestamp":1573720083000},"page":"1142-1148","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":25,"title":["Differences of Anteroposterior Pelvic Radiographs Between Supine Position and Standing Position in Patients with Developmental Dysplasia of the Hip"],"prefix":"10.1111","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7877-6747","authenticated-orcid":false,"given":"Guo\u2010yue","family":"Yang","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Third Central Hospital of Tianjin  Tianjin China"},{"name":"Tianjin Institute of Hepatobiliary Disease  Tianjin China"},{"name":"Tianjin Key Laboratory of Artificial Cell  Tianjin China"},{"name":"Artificial Cell Engineering Technology Research Center of Public Health Ministry  Tianjin China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ya\u2010yue","family":"Li","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Third Central Hospital of Tianjin  Tianjin China"},{"name":"Tianjin Institute of Hepatobiliary Disease  Tianjin China"},{"name":"Tianjin Key Laboratory of Artificial Cell  Tianjin China"},{"name":"Artificial Cell Engineering Technology Research Center of Public Health Ministry  Tianjin China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dian\u2010zhong","family":"Luo","sequence":"additional","affiliation":[{"name":"The Fourth Medical Center of the Chinese People's Liberation Army General Hospital Department of Orthopaedic  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cheng","family":"Hui","sequence":"additional","affiliation":[{"name":"The Fourth Medical Center of the Chinese People's Liberation Army General Hospital Department of Orthopaedic  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kai","family":"Xiao","sequence":"additional","affiliation":[{"name":"The Fourth Medical Center of the Chinese People's Liberation Army General Hospital Department of Orthopaedic  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hong","family":"Zhang","sequence":"additional","affiliation":[{"name":"The Fourth Medical Center of the Chinese People's Liberation Army General Hospital Department of Orthopaedic  Beijing 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