{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T22:27:41Z","timestamp":1790116061909,"version":"4.0.1"},"reference-count":16,"publisher":"SAGE Publications","issue":"1","license":[{"start":{"date-parts":[[2019,12,12]],"date-time":"2019-12-12T00:00:00Z","timestamp":1576108800000},"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":["J Orthop Surg (Hong Kong)"],"published-print":{"date-parts":[[2020,1,1]]},"abstract":"<jats:sec>\n                    <jats:title>Purpose:<\/jats:title>\n                    <jats:p>Anatomical sacral slope (a-SS), a pelvic anatomical parameter that does not require the center of the femoral head, strongly correlates with pelvic incidence (PI) during three-dimensional measurements in normal subjects. Sagittal alignment of spinal and pelvic parameters is typically evaluated using two-dimensional radiographs; however, the relationship between a-SS and PI has not been evaluated using radiographs. This study aimed to evaluate the correlation between a-SS and other spinal and pelvic parameters using radiographs.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>We evaluated 144 healthy women. Using sagittal radiographs, we measured lumbar lordosis (LL), thoracic kyphosis, PI, SS, pelvic tilt, and a-SS, which were defined as the angle between the superior end plate of S1 and a line perpendicular to the anterior pelvic plane. Pearson coefficients were used to determine correlations, and intraobserver and interobserver intraclass correlation coefficients (ICCs) were used for validation.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>There was a strong correlation between PI and a-SS ( r = 0.756). Moreover, correlations between a-SS and LL and between PI and LL were similar ( r = 0.661 and r = 0.554, respectively). The intraobserver ICCs were 0.884 for a-SS and 0.840 for PI. The interobserver ICCs were 0.856 for a-SS and 0.653 for PI.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>a-SS was strongly correlated with PI. The correlation between a-SS and LL was equivalent to the correlation between PI and LL. Moreover, the ICC for a-SS was larger than that of PI. This study suggests that a-SS is a useful new pelvic anatomical parameter that can be used instead of PI.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/2309499019888809","type":"journal-article","created":{"date-parts":[[2019,12,12]],"date-time":"2019-12-12T06:11:47Z","timestamp":1576131107000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":19,"title":["Anatomical sacral slope, a new pelvic parameter, is associated with lumbar lordosis and pelvic incidence in healthy Japanese women: A retrospective cross-sectional study"],"prefix":"10.1177","volume":"28","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3479-5564","authenticated-orcid":false,"given":"Hayato","family":"Suzuki","sequence":"first","affiliation":[{"name":"Division of Orthopedic Surgery, Department of Regenerative and Transplant Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Norio","family":"Imai","sequence":"additional","affiliation":[{"name":"Division of Orthopedic Surgery, Department of Regenerative and Transplant Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan"},{"name":"Division of Comprehensive Geriatrics in Community, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Asami","family":"Nozaki","sequence":"additional","affiliation":[{"name":"Division of Orthopedic Surgery, Department of Regenerative and Transplant Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuki","family":"Hirano","sequence":"additional","affiliation":[{"name":"Division of Orthopedic Surgery, Department of Regenerative and Transplant Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Naoto","family":"Endo","sequence":"additional","affiliation":[{"name":"Division of Orthopedic Surgery, Department of Regenerative and Transplant Medicine, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2019,12,12]]},"reference":[{"key":"bibr1-2309499019888809","doi-asserted-by":"publisher","DOI":"10.1097\/BRS.0b013e3181ee6bd4"},{"key":"bibr2-2309499019888809","doi-asserted-by":"publisher","DOI":"10.1007\/s00586-010-1476-9"},{"key":"bibr3-2309499019888809","doi-asserted-by":"publisher","DOI":"10.1007\/s005860050038"},{"key":"bibr4-2309499019888809","doi-asserted-by":"publisher","DOI":"10.1007\/s005860000224"},{"key":"bibr5-2309499019888809","doi-asserted-by":"publisher","DOI":"10.1097\/01.brs.0000152379.54463.65"},{"key":"bibr6-2309499019888809","doi-asserted-by":"publisher","DOI":"10.1097\/01.brs.0000138279.53439.cc"},{"key":"bibr7-2309499019888809","doi-asserted-by":"publisher","DOI":"10.1097\/BRS.0b013e31817886a2"},{"key":"bibr8-2309499019888809","doi-asserted-by":"publisher","DOI":"10.1097\/BRS.0b013e318292b7b9"},{"key":"bibr9-2309499019888809","doi-asserted-by":"publisher","DOI":"10.1007\/s00586-001-0349-7"},{"key":"bibr10-2309499019888809","doi-asserted-by":"publisher","DOI":"10.1016\/j.jos.2018.05.004"},{"key":"bibr11-2309499019888809","doi-asserted-by":"publisher","DOI":"10.1007\/s11999-012-2700-1"},{"key":"bibr12-2309499019888809","unstructured":"Guilford JP, Fruchter B (eds). Correlation. In: Fundamental statistics in psychology and education. 5th ed. New York: McGraw-Hill, 1973, pp. 79\u201398."},{"key":"bibr13-2309499019888809","doi-asserted-by":"publisher","DOI":"10.1007\/s00586-011-1923-2"},{"key":"bibr14-2309499019888809","doi-asserted-by":"publisher","DOI":"10.1097\/BRS.0000000000000022"},{"key":"bibr15-2309499019888809","doi-asserted-by":"publisher","DOI":"10.1186\/s12891-015-0676-1"},{"key":"bibr16-2309499019888809","doi-asserted-by":"publisher","DOI":"10.1007\/s00586-018-5743-5"}],"container-title":["Journal of Orthopaedic Surgery"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/2309499019888809","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/2309499019888809","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/2309499019888809","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T00:28:25Z","timestamp":1777595305000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/2309499019888809"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019,12,12]]},"references-count":16,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2020,1,1]]}},"alternative-id":["10.1177\/2309499019888809"],"URL":"https:\/\/doi.org\/10.1177\/2309499019888809","relation":{},"ISSN":["1022-5536","2309-4990"],"issn-type":[{"value":"1022-5536","type":"print"},{"value":"2309-4990","type":"electronic"}],"subject":[],"published":{"date-parts":[[2019,12,12]]},"article-number":"2309499019888809"}}