{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,23]],"date-time":"2026-07-23T05:23:24Z","timestamp":1784784204076,"version":"3.55.0"},"reference-count":25,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[2022,11,26]],"date-time":"2022-11-26T00:00:00Z","timestamp":1669420800000},"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":["HSS Journal\u00ae: The Musculoskeletal Journal of Hospital for Special Surgery"],"published-print":{"date-parts":[[2023,5]]},"abstract":"<jats:p>\n                    Background: Pelvic tilt (PT) is described as the pelvic orientation along the transverse axis, yet 4 PT definitions were established based on radiographic landmarks: anterior pelvic plane (PT\n                    <jats:sub>a<\/jats:sub>\n                    ), the center of femoral heads to sacral plate (PT\n                    <jats:sub>m<\/jats:sub>\n                    ), pelvic outlet (PT\n                    <jats:sub>h<\/jats:sub>\n                    ), and sacral slope (SS). These landmarks quantify a similar concept, yet understanding of their relationships is lacking, and their differences are sometimes ignored. Purpose: This study aimed to examine the correlations and differences of PT definitions for education and research purposes. Methods: This study reviewed 105 sagittal pelvic radiographs of patients (68 men and 37 women) awaiting hip surgery at a single clinic. Hip hardware and spine pathologies were examined for subgroup analysis. Two observers annotated 4 PTs in a gender-dependent manner and repeated it after 6 months. The linear regression model and intraclass correlation coefficient (ICC) were applied with a 95% confidence interval. Results: The SS showed no correlation to the other 3 PT definitions, except for females in the hip hardware subgroup (n = 17). PT\n                    <jats:sub>m<\/jats:sub>\n                    demonstrated very strong linear correlation to PT\n                    <jats:sub>h<\/jats:sub>\n                    ( r &gt; 0.9) under the linear model PT\n                    <jats:sub>m<\/jats:sub>\n                    = 0.951 \u00d7 PT\n                    <jats:sub>h<\/jats:sub>\n                    \u2013 68.284. Conclusion: The PT\n                    <jats:sub>m<\/jats:sub>\n                    and PT\n                    <jats:sub>h<\/jats:sub>\n                    can be calculated from each other under a simple linear regression equation, which enables comparisons between them. SS presented poor correlations to the other PT parameters, except for the female subgroup with hip implant that required further analysis; PT\n                    <jats:sub>a<\/jats:sub>\n                    -related comparisons showed high anatomical variations between patients.\n                  <\/jats:p>","DOI":"10.1177\/15563316221136128","type":"journal-article","created":{"date-parts":[[2022,11,26]],"date-time":"2022-11-26T09:50:03Z","timestamp":1669456203000},"page":"187-192","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":14,"title":["Correlations Analysis of Different Pelvic Tilt Definitions: A Preliminary Study"],"prefix":"10.1177","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6977-6155","authenticated-orcid":false,"given":"Yuan","family":"Chai","sequence":"first","affiliation":[{"name":"Sydney Musculoskeletal Health, Kolling Institute, Faculty of Medicine and Health, The University of Sydney, St Leonards, NSW, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A. Mounir","family":"Boudali","sequence":"additional","affiliation":[{"name":"Sydney Musculoskeletal Health, Kolling Institute, Faculty of Medicine and Health, The University of Sydney, St Leonards, NSW, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"William L.","family":"Walter","sequence":"additional","affiliation":[{"name":"Sydney Musculoskeletal Health, Kolling Institute, Faculty of Medicine and Health, The University of Sydney, St Leonards, NSW, Australia"},{"name":"Department of Orthopaedic Surgery, Royal North Shore Hospital, St Leonards, NSW, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2022,11,26]]},"reference":[{"key":"bibr1-15563316221136128","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.F.00628"},{"key":"bibr2-15563316221136128","doi-asserted-by":"publisher","DOI":"10.1007\/s00586-011-2061-6"},{"issue":"4","key":"bibr3-15563316221136128","first-page":"234","volume":"75","author":"Buckland AJ","year":"2017","journal-title":"Bull Hosp Jt Dis"},{"issue":"12","key":"bibr4-15563316221136128","first-page":"614","volume":"44","author":"Chan Y","year":"2003","journal-title":"Singapore Med J"},{"key":"bibr5-15563316221136128","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.17.00403"},{"key":"bibr6-15563316221136128","doi-asserted-by":"publisher","DOI":"10.1097\/BRS.0b013e3182293548"},{"key":"bibr7-15563316221136128","doi-asserted-by":"publisher","DOI":"10.1186\/s13018-019-1382-8"},{"key":"bibr8-15563316221136128","doi-asserted-by":"publisher","DOI":"10.1177\/02841851211009466"},{"key":"bibr9-15563316221136128","doi-asserted-by":"publisher","DOI":"10.4184\/asj.2017.11.6.975"},{"key":"bibr10-15563316221136128","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcm.2016.02.012"},{"key":"bibr11-15563316221136128","doi-asserted-by":"publisher","DOI":"10.1097\/BRS.0b013e3181aad219"},{"key":"bibr12-15563316221136128","doi-asserted-by":"publisher","DOI":"10.1007\/s00586-011-1937-9"},{"key":"bibr13-15563316221136128","doi-asserted-by":"publisher","DOI":"10.1016\/j.otsr.2011.02.006"},{"key":"bibr14-15563316221136128","doi-asserted-by":"publisher","DOI":"10.1007\/s005860050038"},{"key":"bibr15-15563316221136128","doi-asserted-by":"publisher","DOI":"10.1080\/17453670510041501"},{"key":"bibr16-15563316221136128","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-011-1467-3"},{"key":"bibr17-15563316221136128","doi-asserted-by":"publisher","DOI":"10.1016\/S0883-5403(89)80020-8"},{"key":"bibr18-15563316221136128","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.52B1.148"},{"key":"bibr19-15563316221136128","doi-asserted-by":"publisher","DOI":"10.1007\/s11832-016-0713-0"},{"key":"bibr20-15563316221136128","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.M.01070"},{"key":"bibr21-15563316221136128","doi-asserted-by":"publisher","DOI":"10.1097\/00003086-200302000-00033"},{"key":"bibr22-15563316221136128","doi-asserted-by":"publisher","DOI":"10.1007\/s11999-014-3936-8"},{"key":"bibr23-15563316221136128","doi-asserted-by":"publisher","DOI":"10.1007\/s00256-005-0050-8"},{"key":"bibr24-15563316221136128","doi-asserted-by":"publisher","DOI":"10.2214\/AJR.06.0921"},{"key":"bibr25-15563316221136128","doi-asserted-by":"publisher","DOI":"10.1016\/S0002-9378(15)30813-9"}],"container-title":["HSS Journal\u00ae: The Musculoskeletal Journal of Hospital for Special Surgery"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/15563316221136128","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/15563316221136128","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/15563316221136128","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T08:47:43Z","timestamp":1777452463000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/15563316221136128"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,11,26]]},"references-count":25,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2023,5]]}},"alternative-id":["10.1177\/15563316221136128"],"URL":"https:\/\/doi.org\/10.1177\/15563316221136128","relation":{},"ISSN":["1556-3316","1556-3324"],"issn-type":[{"value":"1556-3316","type":"print"},{"value":"1556-3324","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,11,26]]}}}