{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,29]],"date-time":"2026-07-29T02:00:33Z","timestamp":1785290433308,"version":"3.55.0"},"reference-count":29,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2025,2,10]],"date-time":"2025-02-10T00:00:00Z","timestamp":1739145600000},"content-version":"vor","delay-in-days":40,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["esskajournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J. exp. orthop."],"published-print":{"date-parts":[[2025,1]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>The functional hip\u2013spine interaction is increasingly noted in hip preservation by periacetabular osteotomy (PAO), while potentially affecting the impingement\u2010free acetabular reorientation. However, the clinically relevant sex\u2010related differences in lumbopelvic alignment have been poorly studied. Thus, the purpose of this study was to evaluate a matched PAO patient cohort for sex\u2010related differences in lumbopelvic alignment.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Out of 138 patients undergoing PAO between January 2024 and September 2024 at one high\u2010volume centre, there were 68 data sets (34 male, 34 female) included. The data sets of this diagnostic cohort study were prospectively collected, and the patients were matched in a 1:1 ratio for sex, age and acetabular morphology (hip dysplasia, borderline hip dysplasia, acetabular retroversion). Lumbopelvic alignment was assessed with serial sagittal lumbopelvic radiographs in standing, relaxed\u2010seated and deep\u2010seated positions. Each radiograph was reviewed for pelvic tilt (PT), lumbar lordosis and sacral slope.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Females showed a significantly lower PT in standing (7.8 vs. 14.3\u00b0, <jats:italic>p<\/jats:italic>\u2009&lt;\u20090.001), relaxed\u2010seated (28.1 vs. 34.9\u00b0, <jats:italic>p<\/jats:italic>\u2009=\u20090.012) and deep\u2010seated (3.7 vs. 11.0\u00b0, <jats:italic>p<\/jats:italic>\u2009=\u20090.013) positions. Furthermore, females had a significantly increased lumbar mobility (\u0394 relaxed\u2010seated\u2009\u2212\u2009deep\u2010seated position\u2009\u2212\u200935.4\u00b0 vs. 27.0\u00b0, <jats:italic>p<\/jats:italic>\u2009=\u20090.003), while there was no sex\u2010related difference in sacral mobility (<jats:italic>p<\/jats:italic>\u2009&gt;\u20090.05).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>There are sex\u2010related differences in functional lumbopelvic alignment across various positions of daily living in patients undergoing PAO. With a greater anterior PT, females are at risk of an anterior hip impingement. Thus, the intraoperative anterior and posterior wall reorientation by PAO should be adapted to the sex\u2010related lumbopelvic alignment to ensure an impingement\u2010free surgical outcome.<\/jats:p><\/jats:sec><jats:sec><jats:title>Level of Evidence<\/jats:title><jats:p>Level IV, case series.<\/jats:p><\/jats:sec>","DOI":"10.1002\/jeo2.70167","type":"journal-article","created":{"date-parts":[[2025,2,11]],"date-time":"2025-02-11T00:03:57Z","timestamp":1739232237000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Greater anterior pelvic tilt and lumbar mobility in females compared to males undergoing periacetabular osteotomy: A matched cohort study"],"prefix":"10.1002","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0009-0003-1567-5297","authenticated-orcid":false,"given":"Maximilian","family":"Fischer","sequence":"first","affiliation":[{"name":"Center for Orthopaedics, Trauma Surgery and Rehabilitation Medicine University Medicine Greifswald Greifswald Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lars","family":"Nonnenmacher","sequence":"additional","affiliation":[{"name":"Center for Orthopaedics, Trauma Surgery and Rehabilitation Medicine University Medicine Greifswald Greifswald Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andreas","family":"Nitsch","sequence":"additional","affiliation":[{"name":"Center for Orthopaedics, Trauma Surgery and Rehabilitation Medicine University Medicine Greifswald Greifswald Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Matthias R.","family":"M\u00fchler","sequence":"additional","affiliation":[{"name":"Department of Radiology and Neuroradiology University Medicine Greifswald Greifswald Germany"},{"name":"Department of Radiology University of Wisconsin Madison Wisconsin USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andre","family":"Hofer","sequence":"additional","affiliation":[{"name":"Center for Orthopaedics, Trauma Surgery and Rehabilitation Medicine University Medicine Greifswald Greifswald Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Georgi I.","family":"Wassilew","sequence":"additional","affiliation":[{"name":"Center for Orthopaedics, Trauma Surgery and Rehabilitation Medicine University Medicine Greifswald Greifswald Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,2,10]]},"reference":[{"key":"e_1_2_12_2_1","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.105B7.BJJ-2022-1058.R2"},{"key":"e_1_2_12_3_1","doi-asserted-by":"publisher","DOI":"10.1093\/bja\/aet127"},{"key":"e_1_2_12_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.arth.2019.08.020"},{"key":"e_1_2_12_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.arth.2023.05.062"},{"key":"e_1_2_12_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.arth.2016.12.039"},{"key":"e_1_2_12_7_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00402-024-05432-0"},{"key":"e_1_2_12_8_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00402-018-2992-z"},{"key":"e_1_2_12_9_1","doi-asserted-by":"publisher","DOI":"10.1097\/CORR.0000000000003126"},{"key":"e_1_2_12_10_1","doi-asserted-by":"publisher","DOI":"10.1097\/00003086-198807000-00006"},{"key":"e_1_2_12_11_1","doi-asserted-by":"publisher","DOI":"10.1097\/CORR.0000000000001172"},{"key":"e_1_2_12_12_1","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.H.01674"},{"key":"e_1_2_12_13_1","doi-asserted-by":"publisher","DOI":"10.1002\/jeo2.70123"},{"key":"e_1_2_12_14_1","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.106B3.BJJ-2023-0835.R2"},{"key":"e_1_2_12_15_1","doi-asserted-by":"publisher","DOI":"10.1097\/00005650-200206000-00003"},{"key":"e_1_2_12_16_1","doi-asserted-by":"publisher","DOI":"10.1093\/jhps\/hnae003"},{"key":"e_1_2_12_17_1","doi-asserted-by":"publisher","DOI":"10.1177\/0363546515576908"},{"key":"e_1_2_12_18_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0002-9343(97)00050-8"},{"key":"e_1_2_12_19_1","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.100B7.BJJ-2017-1599.R1"},{"key":"e_1_2_12_20_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ejro.2022.100407"},{"key":"e_1_2_12_21_1","doi-asserted-by":"publisher","DOI":"10.1002\/ksa.12131"},{"key":"e_1_2_12_22_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41598-024-59840-8"},{"key":"e_1_2_12_23_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00586-015-4062-3"},{"key":"e_1_2_12_24_1","doi-asserted-by":"publisher","DOI":"10.1002\/ksa.12124"},{"key":"e_1_2_12_25_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.arth.2022.02.002"},{"key":"e_1_2_12_26_1","doi-asserted-by":"publisher","DOI":"10.1097\/00003086-200302000-00033"},{"key":"e_1_2_12_27_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-022-06928-1"},{"key":"e_1_2_12_28_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.arth.2020.12.055"},{"key":"e_1_2_12_29_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jos.2022.07.002"},{"key":"e_1_2_12_30_1","doi-asserted-by":"publisher","DOI":"10.1097\/CORR.0000000000002768"}],"container-title":["Journal 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