{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,17]],"date-time":"2026-09-17T16:50:57Z","timestamp":1789663857546,"version":"4.0.1"},"reference-count":25,"publisher":"Springer Science and Business Media LLC","issue":"7","license":[{"start":{"date-parts":[[2025,3,11]],"date-time":"2025-03-11T00:00:00Z","timestamp":1741651200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2025,3,11]],"date-time":"2025-03-11T00:00:00Z","timestamp":1741651200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"funder":[{"DOI":"10.13039\/100021092","name":"University of Yamanashi","doi-asserted-by":"crossref","id":[{"id":"10.13039\/100021092","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Eur Spine J"],"published-print":{"date-parts":[[2025,7]]},"abstract":"<jats:title>Abstract<\/jats:title>\n          <jats:sec>\n            <jats:title>Purpose<\/jats:title>\n            <jats:p>The present study aimed to analyze the preoperative degeneration of the sacroiliac joint (SIJ) and its involvement in postoperative pelvic incidence (PI) change.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Methods<\/jats:title>\n            <jats:p>Data from consecutive patients who underwent corrective surgery for adult spinal deformity (ASD) were included in this study. Pre- and early postoperative full-standing radiographs and preoperative pelvic computed tomography (CT) images were examined. Spinopelvic parameters were measured from full-standing radiographs, whereas SIJ degeneration was evaluated from pelvic CT images. We then compared preoperative and postoperative spinopelvic parameters, focusing on PI change, and investigated whether spinopelvic parameters and SIJ degeneration affected PI change.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Results<\/jats:title>\n            <jats:p>Data from 122 patients (mean age, 71.8 years) were analyzed, with the mean number of fixed vertebrae being 10.2. Postoperative PI decreased significantly by 3.2\u00b0 (from 50.8\u00b0 to 47.6\u00b0; <jats:italic>P<\/jats:italic>\u2009&lt;\u20090.0001). After confirming the presence of SIJ degeneration based on preoperative CT, we found that 39, 38, 49, 98, and 54 patients had osteophytes, sclerosis, bridging bone, articular gas, and SIJ subluxation, respectively. No significant association was observed between sclerosis, osteophyte formation, bony bridging, or articular gas and postoperative PI change, although a significantly greater decrease in postoperative PI was observed among those with SIJ subluxation (<jats:italic>P<\/jats:italic>\u2009=\u20090.0035). PI change only correlated with preoperative PI (<jats:italic>P<\/jats:italic>\u2009&lt;\u20090.001, <jats:italic>R<\/jats:italic>\u2009=\u2009\u2212\u20090.56).<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Conclusion<\/jats:title>\n            <jats:p>PI decreased significantly after ASD surgery. We found that several patients showed SIJ subluxation before ASD surgery. PI change after ASD surgery was significantly associated with preoperative PI value and SIJ subluxation.<\/jats:p>\n          <\/jats:sec>","DOI":"10.1007\/s00586-025-08769-1","type":"journal-article","created":{"date-parts":[[2025,3,10]],"date-time":"2025-03-10T23:11:32Z","timestamp":1741648292000},"page":"2856-2864","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Factors affecting postoperative pelvic incidence reduction following surgery for adult spinal deformity"],"prefix":"10.1007","volume":"34","author":[{"ORCID":"https:\/\/orcid.org\/0009-0008-0836-3742","authenticated-orcid":false,"given":"Nobuki","family":"Tanaka","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tetsuro","family":"Ohba","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kotaro","family":"Oda","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hayato","family":"Takei","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kai","family":"Mizukami","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Goto","family":"Go","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hirotaka","family":"Haro","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2025,3,11]]},"reference":[{"key":"8769_CR1","doi-asserted-by":"publisher","first-page":"587","DOI":"10.1007\/s00586-014-3556-8","volume":"23","author":"P Berjano","year":"2014","unstructured":"Berjano P, Langella F, Ismael MF, Damilano M, Scopetta S, Lamartina C (2014) Successful correction of sagittal imbalance can be calculated on the basis of pelvic incidence and age. Eur Spine J 23:587\u2013596. https:\/\/doi.org\/10.1007\/s00586-014-3556-8","journal-title":"Eur Spine J"},{"key":"8769_CR2","doi-asserted-by":"publisher","first-page":"698","DOI":"10.1007\/s00586-011-1967-3","volume":"21","author":"V Lafage","year":"2012","unstructured":"Lafage V, Smith JS, Bess S, Schwab FJ, Ames CP, Klineberg E, Arlet V, Hostin R, Burton DC, Shaffrey CI (2012) Sagittal spino-pelvic alignment failures following three column thoracic osteotomy for adult spinal deformity. Eur Spine J 21:698\u2013704. https:\/\/doi.org\/10.1007\/s00586-011-1967-3","journal-title":"Eur Spine J"},{"key":"8769_CR3","doi-asserted-by":"publisher","first-page":"E1469","DOI":"10.1097\/BRS.0b013e3182a51d43","volume":"38","author":"K Maruo","year":"2013","unstructured":"Maruo K, Ha Y, Inoue S, Samuel S, Okada E, Hu SS, Deviren V, Burch S, William S, Ames CP, Mummaneni PV, Chou D, Berven SH (2013) Predictive factors for proximal junctional kyphosis in long fusions to the sacrum in adult spinal deformity. Spine 38:E1469\u2013E1476. https:\/\/doi.org\/10.1097\/BRS.0b013e3182a51d43","journal-title":"Spine"},{"key":"8769_CR4","doi-asserted-by":"publisher","first-page":"E576","DOI":"10.1097\/BRS.0000000000000246","volume":"39","author":"HJ Kim","year":"2014","unstructured":"Kim HJ, Bridwell KH, Lenke LG, Park MS, Song KS, Piyaskulkaew C, Chuntarapas T (2014) Patients with proximal junctional kyphosis requiring revision surgery have higher postoperative lumbar lordosis and larger sagittal balance corrections. Spine 39:E576\u2013E580. https:\/\/doi.org\/10.1097\/BRS.0000000000000246","journal-title":"Spine"},{"key":"8769_CR5","doi-asserted-by":"publisher","first-page":"2093","DOI":"10.1097\/BRS.0000000000000627","volume":"39","author":"D Lau","year":"2014","unstructured":"Lau D, Clark AJ, Scheer JK, Daubs MD, Coe JD, Paonessa KJ, LaGrone MO, Kasten MD, Amaral RA, Trobisch PD, Lee JH, Fabris-Monterumici D, Anand N, Cree AK, Hart RA, Hey LA, Ames CP, SRS Adult Spinal Deformity Committee (2014) Proximal junctional kyphosis and failure after spinal deformity surgery: a systematic review of the literature as a background to classification development. Spine 39:2093\u20132102. https:\/\/doi.org\/10.1097\/BRS.0000000000000627","journal-title":"Spine"},{"key":"8769_CR6","doi-asserted-by":"publisher","first-page":"E607","DOI":"10.1097\/BRS.0000000000000266","volume":"39","author":"M Yagi","year":"2014","unstructured":"Yagi M, Rahm M, Gaines R, Maziad A, Ross T, Kim HJ, Kebaish K, Boachie-Adjei O, Complex Spine Study Group (2014) Characterization and surgical outcomes of proximal junctional failure in surgically treated patients with adult spinal deformity. Spine 39:E607\u2013E614. https:\/\/doi.org\/10.1097\/BRS.0000000000000266","journal-title":"Spine"},{"key":"8769_CR7","doi-asserted-by":"publisher","first-page":"833","DOI":"10.1177\/028418517801900513","volume":"19","author":"N Egund","year":"1978","unstructured":"Egund N, Olsson TH, Schmid H, Selvik G (1978) Movements in the sacroiliac joints demonstrated with Roentgen stereophotogrammetry. Acta Radiol Diagn (Stockh) 19:833\u2013846. https:\/\/doi.org\/10.1177\/028418517801900513","journal-title":"Acta Radiol Diagn (Stockh)"},{"key":"8769_CR8","first-page":"158","volume":"54","author":"RO Kissling","year":"1996","unstructured":"Kissling RO, Jacob HA (1996) The mobility of the sacroiliac joint in healthy subjects. Bull Hosp Jt Dis 54:158\u2013164","journal-title":"Bull Hosp Jt Dis"},{"key":"8769_CR9","doi-asserted-by":"publisher","first-page":"162","DOI":"10.1097\/00007632-198902000-00004","volume":"14","author":"B Sturesson","year":"1989","unstructured":"Sturesson B, Selvik G, Ud\u00e9n A (1989) Movements of the sacroiliac joints. A Roentgen stereophotogrammetric analysis. Spine 14:162\u2013165. https:\/\/doi.org\/10.1097\/00007632-198902000-00004","journal-title":"Spine"},{"key":"8769_CR10","doi-asserted-by":"publisher","first-page":"436","DOI":"10.1007\/s00586-017-5154-z","volume":"26","author":"R Cecchinato","year":"2017","unstructured":"Cecchinato R, Redaelli A, Martini C, Morselli C, Villafa\u00f1e JH, Lamartina C, Berjano P (2017) Long fusions to S1 with or without pelvic fixation can induce relevant acute variations in pelvic incidence: a retrospective cohort study of adult spine deformity surgery. Eur Spine J 26:436\u2013441. https:\/\/doi.org\/10.1007\/s00586-017-5154-z","journal-title":"Eur Spine J"},{"key":"8769_CR11","doi-asserted-by":"publisher","first-page":"99","DOI":"10.1007\/s005860050038","volume":"7","author":"J Legaye","year":"1998","unstructured":"Legaye J, Duval-Beaup\u00e8re G, Hecquet J, Marty C (1998) Pelvic incidence: a fundamental pelvic parameter for three-dimensional regulation of spinal sagittal curves. Eur Spine J 7:99\u2013103. https:\/\/doi.org\/10.1007\/s005860050038","journal-title":"Eur Spine J"},{"key":"8769_CR12","doi-asserted-by":"publisher","first-page":"564","DOI":"10.1007\/s00586-011-1940-1","volume":"20","author":"JC Le Huec","year":"2011","unstructured":"Le Huec JC, Aunoble S, Philippe L, Nicolas P (2011) Pelvic parameters: origin and significance. Eur Spine J 20:564\u2013571. https:\/\/doi.org\/10.1007\/s00586-011-1940-1","journal-title":"Eur Spine J"},{"key":"8769_CR13","doi-asserted-by":"publisher","first-page":"71","DOI":"10.2519\/jospt.1991.13.2.71","volume":"13","author":"GJ Alderink","year":"1991","unstructured":"Alderink GJ (1991) The sacroiliac joint: review of anatomy, mechanics, and function. J Orthop Sports Phys Ther 13:71\u201384. https:\/\/doi.org\/10.2519\/jospt.1991.13.2.71","journal-title":"J Orthop Sports Phys Ther"},{"key":"8769_CR14","doi-asserted-by":"publisher","first-page":"236","DOI":"10.22603\/ssrr.2018-0090","volume":"3","author":"S Ebata","year":"2019","unstructured":"Ebata S, Oba H, Ohba T, Takahashi J, Ikegami S, Koyama K, Kato H, Haro H (2019) Surgical outcomes of long fusion using dual Iliac screws bilaterally for adult spinal deformities: the effect on the loosening rate and sacroiliac joint correction. Spine Surg Relat Res 3:236\u2013243","journal-title":"Spine Surg Relat Res"},{"key":"8769_CR15","doi-asserted-by":"publisher","first-page":"195","DOI":"10.1097\/BRS.0000000000002775","volume":"44","author":"H Oba","year":"2018","unstructured":"Oba H, Ebata S, Takahashi J, Ikegami S, Koyama K, Haro H, Kato H, Ohba T (2018) Loss of pelvic incidence after long fusion using Iliac screws for adult spinal deformity: cause and effect on clinical outcome. Spine 44:195\u2013202. Https:\/\/doi.org\/10.197\/BRS.0000000000002775","journal-title":"Spine"},{"key":"8769_CR16","doi-asserted-by":"publisher","first-page":"2103","DOI":"10.1007\/s00586-019-06027-9","volume":"28","author":"H Oba","year":"2019","unstructured":"Oba H, Ebata S, Takahashi J, Ikegami S, Koyama K, Kato H, Haro H, Ohba T (2019) Changes in pelvic anatomy after long corrective fusion using Iliac screws for adult spinal deformity. Eur Spine J 28:2103\u20132111. https:\/\/doi.org\/10.1007\/s00586-019-06027-9","journal-title":"Eur Spine J"},{"key":"8769_CR17","doi-asserted-by":"publisher","first-page":"1359","DOI":"10.1007\/s00256-023-04281-z","volume":"52","author":"TP Trentadue","year":"2023","unstructured":"Trentadue TP, Anderson TL, Wenger DE, McKenzie GA (2023) Prevalence of accessory sacroiliac joint anatomy and associated clinical features. Skeletal Radiol 52:1359\u20131368. https:\/\/doi.org\/10.1007\/s00256-023-04281-z","journal-title":"Skeletal Radiol"},{"key":"8769_CR18","doi-asserted-by":"publisher","first-page":"63","DOI":"10.1007\/s00586-014-3632-0","volume":"24","author":"JC Le Huec","year":"2015","unstructured":"Le Huec JC, Demezon H, Aunoble S (2015) Sagittal parameters of global cervical balance using EOS imaging: normative values from a prospective cohort of asymptomatic volunteers. Eur Spine J 24:63\u201371. https:\/\/doi.org\/10.1007\/s00586-014-3632-0","journal-title":"Eur Spine J"},{"key":"8769_CR19","doi-asserted-by":"publisher","first-page":"482","DOI":"10.1007\/S00586-017-5324-z","volume":"27","author":"H Bao","year":"2018","unstructured":"Bao H, Liabaud B, Varghese J, Lafage R, Diebo BG, Jalai C, Ramchandran S, Poorman G, Errico T, Zhu F, Protopsaltis T, Passias P, Buckland A, Schwab F, Lafage V (2018) Lumbosacral stress and age May contribute to increased pelvic incidence: an analysis of 1625 adults. Eur Spine J 27:482\u2013488. https:\/\/doi.org\/10.1007\/S00586-017-5324-z","journal-title":"Eur Spine J"},{"key":"8769_CR20","doi-asserted-by":"publisher","first-page":"1394","DOI":"10.1007\/s00586-014-3207-0","volume":"23","author":"L Jean","year":"2014","unstructured":"Jean L (2014) Influence of age and sagittal balance of the spine on the value of the pelvic incidence. Eur Spine J 23:1394\u20131399. https:\/\/doi.org\/10.1007\/s00586-014-3207-0","journal-title":"Eur Spine J"},{"key":"8769_CR21","doi-asserted-by":"publisher","first-page":"433","DOI":"10.1016\/j.spinee.2012.02.013","volume":"12","author":"T Vrtovec","year":"2012","unstructured":"Vrtovec T, Janssen MM, Likar B, Castelein RM, Viergever MA, Pernu\u0161 F (2012) A review of methods for evaluating the quantitative parameters of sagittal pelvic alignment. Spine J 12:433\u2013446. https:\/\/doi.org\/10.1016\/j.spinee.2012.02.013","journal-title":"Spine J"},{"key":"8769_CR22","doi-asserted-by":"publisher","first-page":"609","DOI":"10.1007\/s00586-011-1928-x","volume":"20","author":"P Roussouly","year":"2011","unstructured":"Roussouly P, Pinheiro-Franco JL (2011) Biomechanical analysis of the spino-pelvic organization and adaptation in pathology. Eur Spine J 20:609\u2013618. https:\/\/doi.org\/10.1007\/s00586-011-1928-x","journal-title":"Eur Spine J"},{"key":"8769_CR23","doi-asserted-by":"publisher","first-page":"3707","DOI":"10.1007\/s00586-015-4199-0","volume":"25","author":"JH Lee","year":"2016","unstructured":"Lee JH, Na KH, Kim JH, Jeong HY, Chang DG (2016) Is pelvic incidence a constant, as everyone knows? Changes of pelvic incidence in surgically corrected adult sagittal deformity. Eur Spine J 25:3707\u20133714. https:\/\/doi.org\/10.1007\/s00586-015-4199-0","journal-title":"Eur Spine J"},{"key":"8769_CR24","doi-asserted-by":"publisher","first-page":"138","DOI":"10.1007\/s00586-018-5738-2","volume":"28","author":"CC Tseng","year":"2019","unstructured":"Tseng CC, Liu Z, Bao H, Li J, Zhao Z, Hu Z, Qiu Y, Zhu Z (2019) Long fusion to the pelvis with S2-alar-iliac screws can induce changes in pelvic incidence in adult spinal deformity patients: analysis of predictive factors in a retro-spective cohort study of adult spine deformity surgery. Eur Spine J 28:138\u2013145. https:\/\/doi.org\/10.1007\/s00586-018-5738-2","journal-title":"Eur Spine J"},{"key":"8769_CR25","doi-asserted-by":"publisher","first-page":"5903","DOI":"10.1038\/s41598-021-85303-5","volume":"11","author":"K Ziegeler","year":"2021","unstructured":"Ziegeler K, Kreutzinger V, Diekhoff T, Roehle R, Poddubnyy D, Pumberger M, Hamm B, Hermann KGA (2021) Impact of age, sex, and joint form on degenerative lesions of the sacroiliac joints on CT in the normal population. Sci Rep 11:5903. https:\/\/doi.org\/10.1038\/s41598-021-85303-5","journal-title":"Sci Rep"}],"container-title":["European Spine Journal"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s00586-025-08769-1.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/article\/10.1007\/s00586-025-08769-1\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s00586-025-08769-1.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,9,6]],"date-time":"2025-09-06T07:32:03Z","timestamp":1757143923000},"score":1,"resource":{"primary":{"URL":"https:\/\/link.springer.com\/10.1007\/s00586-025-08769-1"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,3,11]]},"references-count":25,"journal-issue":{"issue":"7","published-print":{"date-parts":[[2025,7]]}},"alternative-id":["8769"],"URL":"https:\/\/doi.org\/10.1007\/s00586-025-08769-1","relation":{},"ISSN":["0940-6719","1432-0932"],"issn-type":[{"value":"0940-6719","type":"print"},{"value":"1432-0932","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,3,11]]},"assertion":[{"value":"14 May 2024","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"4 February 2025","order":2,"name":"revised","label":"Revised","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"27 February 2025","order":3,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"11 March 2025","order":4,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"The current study was approved by the institutional review board (approval no. 1183).","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethical approval"}},{"value":"Not applicable.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent"}},{"value":"Not applicable.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Data"}},{"value":"There were no relevant financial activities outside the submitted work.","order":5,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}]}}