{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,29]],"date-time":"2025-12-29T13:44:34Z","timestamp":1767015874141,"version":"3.48.0"},"reference-count":27,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2025,8,31]],"date-time":"2025-08-31T00:00:00Z","timestamp":1756598400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.springernature.com\/gp\/researchers\/text-and-data-mining"},{"start":{"date-parts":[[2025,8,31]],"date-time":"2025-08-31T00:00:00Z","timestamp":1756598400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.springernature.com\/gp\/researchers\/text-and-data-mining"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Eur J Orthop Surg Traumatol"],"DOI":"10.1007\/s00590-025-04495-y","type":"journal-article","created":{"date-parts":[[2025,8,31]],"date-time":"2025-08-31T03:20:24Z","timestamp":1756610424000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Preoperative cervical alignment can affect the occurrence of proximal junctional kyphosis in patients with adolescent idiopathic scoliosis"],"prefix":"10.1007","volume":"35","author":[{"given":"Tomohiro","family":"Banno","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yu","family":"Yamato","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tomohiko","family":"Hasegawa","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Go","family":"Yoshida","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hideyuki","family":"Arima","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shin","family":"Oe","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Koichiro","family":"Ide","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tomohiro","family":"Yamada","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kenta","family":"Kurosu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yusuke","family":"Murakami","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yukihiro","family":"Matsuyama","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2025,8,31]]},"reference":[{"key":"4495_CR1","doi-asserted-by":"publisher","first-page":"2376","DOI":"10.1007\/s00586-016-4534-0","volume":"25","author":"FY Liu","year":"2016","unstructured":"Liu FY, Wang T, Yang SD, Wang H, Yang DL, Ding WY (2016) Incidence and risk factors for proximal junctional kyphosis: a meta-analysis. Eur Spine J 25:2376\u20132383. https:\/\/doi.org\/10.1007\/s00586-016-4534-0","journal-title":"Eur Spine J"},{"key":"4495_CR2","doi-asserted-by":"publisher","first-page":"2731","DOI":"10.1097\/BRS.0b013e31815a7ead","volume":"32","author":"YJ Kim","year":"2007","unstructured":"Kim YJ, Lenke LG, Bridwell KH, Kim J, Cho SK, Cheh G, Yoon J (2007) Proximal junctional kyphosis in adolescent idiopathic scoliosis after 3 different types of posterior segmental spinal instrumentation and fusions: incidence and risk factor analysis of 410 cases. Spine  32:2731\u20132738. https:\/\/doi.org\/10.1097\/BRS.0b013e31815a7ead","journal-title":"Spine (Phila Pa 1976)"},{"key":"4495_CR3","doi-asserted-by":"publisher","first-page":"1675","DOI":"10.1097\/BRS.0b013e31817b5bea","volume":"33","author":"SM Hollenbeck","year":"2008","unstructured":"Hollenbeck SM, Glattes RC, Asher MA, Lai SM, Burton DC (2008) The prevalence of increased proximal junctional flexion following posterior instrumentation and arthrodesis for adolescent idiopathic scoliosis. Spine  33:1675\u20131681. https:\/\/doi.org\/10.1097\/BRS.0b013e31817b5bea","journal-title":"Spine (Phila Pa 1976)"},{"key":"4495_CR4","doi-asserted-by":"publisher","first-page":"181","DOI":"10.1016\/j.jspd.2016.10.003","volume":"5","author":"BS Lonner","year":"2017","unstructured":"Lonner BS, Ren Y, Newton PO, Shah SA, Samdani AF, Shufflebarger HL, Asghar J, Sponseller P, Betz RR, Yaszay B (2017) Risk factors of proximal junctional kyphosis in adolescent idiopathic scoliosis: the pelvis and other considerations. Spine Deform 5:181\u2013188. https:\/\/doi.org\/10.1016\/j.jspd.2016.10.003","journal-title":"Spine Deform"},{"key":"4495_CR5","doi-asserted-by":"publisher","first-page":"415","DOI":"10.1016\/j.injury.2010.01.001","volume":"41","author":"J Wang","year":"2010","unstructured":"Wang J, Zhao Y, Shen B, Wang C, Li M (2010) Risk factor analysis of proximal junctional kyphosis after posterior fusion in patients with idiopathic scoliosis. Injury 41:415\u2013420. https:\/\/doi.org\/10.1016\/j.injury.2010.01.001","journal-title":"Injury"},{"key":"4495_CR6","doi-asserted-by":"publisher","first-page":"2241","DOI":"10.1007\/s00586-018-5640-y","volume":"27","author":"E Ferrero","year":"2018","unstructured":"Ferrero E, Bocahut N, Lefevre Y, Roussouly P, Pesenti S, Lakhal W, Odent T, Morin C, Clement JL, Compagnon R, de Gauzy JS, Jouve JL, Mazda K, Abelin-Genevois K, Ilharreborde B (2018) Proximal junctional kyphosis in thoracic adolescent idiopathic scoliosis: risk factors and compensatory mechanisms in a multicenter national cohort. Eur Spine J 27:2241\u20132250. https:\/\/doi.org\/10.1007\/s00586-018-5640-y","journal-title":"Eur Spine J"},{"key":"4495_CR7","doi-asserted-by":"publisher","first-page":"1988","DOI":"10.1007\/s00586-021-06875-4","volume":"30","author":"JL Clement","year":"2021","unstructured":"Clement JL, Pesenti S, Ilharreborde B, Morin C, Charles YP, Parent HF, Violas P, Szadkowski M, Boissiere L, Solla F (2021) Proximal junctional kyphosis is a rebalancing spinal phenomenon due to insufficient postoperative thoracic kyphosis after adolescent idiopathic scoliosis surgery. Eur Spine J 30:1988\u20131997. https:\/\/doi.org\/10.1007\/s00586-021-06875-4","journal-title":"Eur Spine J"},{"key":"4495_CR8","doi-asserted-by":"publisher","first-page":"1019","DOI":"10.1177\/2192568220935107","volume":"11","author":"Y Ogura","year":"2021","unstructured":"Ogura Y, Glassman SD, Sucato D, Hresko MT, Carreon LY (2021) Incidence of proximal junctional kyphosis with pedicle screws at upper instrumented vertebrae in posterior spinal fusion for adolescent idiopathic scoliosis. Glob Spine J 11:1019\u20131024. https:\/\/doi.org\/10.1177\/2192568220935107","journal-title":"Glob Spine J"},{"key":"4495_CR9","doi-asserted-by":"publisher","DOI":"10.3390\/jcm11206098","author":"K Boeckenfoerde","year":"2022","unstructured":"Boeckenfoerde K, Schulze Boevingloh A, Gosheger G, Bockholt S, Lampe LP, Lange T (2022) Risk factors of proximal junctional kyphosis in adolescent idiopathic scoliosis: the spinous processes and proximal rod contouring. J Clin Med. https:\/\/doi.org\/10.3390\/jcm11206098","journal-title":"J Clin Med"},{"key":"4495_CR10","doi-asserted-by":"publisher","first-page":"3113","DOI":"10.1007\/s00586-023-07803-4","volume":"32","author":"M Erkilinc","year":"2023","unstructured":"Erkilinc M, Coathup M, Liska MG, Lovevoy J (2023) Can placement of hook at the upper instrumented level decrease the proximal junctional kyphosis risk in adolescent idiopathic scoliosis? Eur Spine J 32:3113\u20133117. https:\/\/doi.org\/10.1007\/s00586-023-07803-4","journal-title":"Eur Spine J"},{"key":"4495_CR11","doi-asserted-by":"publisher","first-page":"2372","DOI":"10.1007\/s00586-013-2753-1","volume":"22","author":"M Yu","year":"2013","unstructured":"Yu M, Silvestre C, Mouton T, Rachkidi R, Zeng L, Roussouly P (2013) Analysis of the cervical spine sagittal alignment in young idiopathic scoliosis: a morphological classification of 120 cases. Eur Spine J 22:2372\u20132381. https:\/\/doi.org\/10.1007\/s00586-013-2753-1","journal-title":"Eur Spine J"},{"key":"4495_CR12","doi-asserted-by":"publisher","first-page":"1141","DOI":"10.1007\/s00586-011-1837-z","volume":"20","author":"F Canavese","year":"2011","unstructured":"Canavese F, Turcot K, De Rosa V, de Coulon G, Kaelin A (2011) Cervical spine sagittal alignment variations following posterior spinal fusion and instrumentation for adolescent idiopathic scoliosis. Eur Spine J 20:1141\u20131148. https:\/\/doi.org\/10.1007\/s00586-011-1837-z","journal-title":"Eur Spine J"},{"key":"4495_CR13","doi-asserted-by":"publisher","first-page":"147","DOI":"10.1186\/s13018-018-0854-6","volume":"13","author":"GM Guo","year":"2018","unstructured":"Guo GM, Li J, Diao QX, Zhu TH, Song ZX, Guo YY, Gao YZ (2018) Cervical lordosis in asymptomatic individuals: a meta-analysis. J Orthop Surg Res 13:147. https:\/\/doi.org\/10.1186\/s13018-018-0854-6","journal-title":"J Orthop Surg Res"},{"key":"4495_CR14","doi-asserted-by":"publisher","DOI":"10.3390\/jcm12175599","author":"K Mori","year":"2023","unstructured":"Mori K, Takahashi J, Oba H, Mimura T, Imai S (2023) Reciprocal change of Cervical Spine after posterior spinal fusion for Lenke type 1 and 2 adolescent idiopathic scoliosis. J Clin Med. https:\/\/doi.org\/10.3390\/jcm12175599","journal-title":"J Clin Med"},{"key":"4495_CR15","doi-asserted-by":"publisher","first-page":"3226","DOI":"10.1007\/s00586-016-4701-3","volume":"25","author":"A Hiyama","year":"2016","unstructured":"Hiyama A, Sakai D, Watanabe M, Katoh H, Sato M, Mochida J (2016) Sagittal alignment of the cervical spine in adolescent idiopathic scoliosis: a comparative study of 42 adolescents with idiopathic scoliosis and 24 normal adolescents. Eur Spine J 25:3226\u20133233. https:\/\/doi.org\/10.1007\/s00586-016-4701-3","journal-title":"Eur Spine J"},{"key":"4495_CR16","doi-asserted-by":"publisher","first-page":"3550","DOI":"10.1007\/s00586-021-06904-2","volume":"30","author":"JL Clement","year":"2021","unstructured":"Clement JL, Le Goff L, Oborocianu I, Rosello O, Bertoncelli C, Solla F, Rampal V (2021) Surgical increase in thoracic kyphosis predicts increase of cervical lordosis after thoracic fusion for adolescent idiopathic scoliosis. Eur Spine J 30:3550\u20133556. https:\/\/doi.org\/10.1007\/s00586-021-06904-2","journal-title":"Eur Spine J"},{"key":"4495_CR17","doi-asserted-by":"publisher","first-page":"E280","DOI":"10.1097\/brs.0000000000001883","volume":"42","author":"P Yan","year":"2017","unstructured":"Yan P, Bao H, Qiu Y, Bao M, Varghese JJ, Sun X, Liu Z, Zhu Z, Qian B, Zheng M, Zhu F (2017) Mismatch between proximal rod contouring and proximal junctional angle: a predisposed risk factor for proximal junctional kyphosis in degenerative scoliosis. Spine 42:E280\u2013E287. https:\/\/doi.org\/10.1097\/brs.0000000000001883","journal-title":"Spine"},{"key":"4495_CR18","doi-asserted-by":"publisher","first-page":"e683","DOI":"10.1016\/j.wneu.2020.01.136","volume":"136","author":"J Wang","year":"2020","unstructured":"Wang J, Yang N, Luo M, Xia L, Li N (2020) Large difference between proximal junctional angle and rod contouring angle is a risk factor for proximal junctional kyphosis. World Neurosurg 136:e683\u2013e689","journal-title":"World Neurosurg"},{"key":"4495_CR19","doi-asserted-by":"publisher","first-page":"624","DOI":"10.1186\/s12891-022-05564-7","volume":"23","author":"B Yang","year":"2022","unstructured":"Yang B, Xu L, Wang M, Wang B, Zhu Z, Qiu Y, Sun X (2022) Unmatched rod contouring at the proximal end predisposes to occurrence of junctional kyphosis in early-onset scoliosis patients undergoing traditional growing rods treatment. BMC Musculoskelet Disord 23:624. https:\/\/doi.org\/10.1186\/s12891-022-05564-7","journal-title":"BMC Musculoskelet Disord"},{"key":"4495_CR20","doi-asserted-by":"publisher","first-page":"1633","DOI":"10.1007\/s11999-011-2179-1","volume":"470","author":"HJ Kim","year":"2012","unstructured":"Kim HJ, Yagi M, Nyugen J, Cunningham ME, Boachie-Adjei O (2012) Combined anterior-posterior surgery is the most important risk factor for developing proximal junctional kyphosis in idiopathic scoliosis. Clin Orthop Relat Res 470:1633\u20131639. https:\/\/doi.org\/10.1007\/s11999-011-2179-1","journal-title":"Clin Orthop Relat Res"},{"key":"4495_CR21","doi-asserted-by":"publisher","first-page":"2045","DOI":"10.1097\/01.brs.0000179084.45839.ad","volume":"30","author":"YJ Kim","year":"2005","unstructured":"Kim YJ, Bridwell KH, Lenke LG, Kim J, Cho SK (2005) Proximal junctional kyphosis in adolescent idiopathic scoliosis following segmental posterior spinal instrumentation and fusion: minimum 5\u00a0year follow-up. Spine  30:2045\u20132050. https:\/\/doi.org\/10.1097\/01.brs.0000179084.45839.ad","journal-title":"Spine (Phila Pa 1976)"},{"key":"4495_CR22","doi-asserted-by":"publisher","first-page":"619","DOI":"10.1111\/joa.12586","volume":"230","author":"K Hasegawa","year":"2017","unstructured":"Hasegawa K, Okamoto M, Hatsushikano S, Shimoda H, Ono M, Homma T, Watanabe K (2017) Standing sagittal alignment of the whole axial skeleton with reference to the gravity line in humans. J Anat 230:619\u2013630. https:\/\/doi.org\/10.1111\/joa.12586","journal-title":"J Anat"},{"key":"4495_CR23","doi-asserted-by":"publisher","first-page":"1695","DOI":"10.1111\/os.13380","volume":"14","author":"B Yang","year":"2022","unstructured":"Yang B, Xu L, Zhou Q, Qian Z, Wang B, Zhu Z, Qiu Y, Sun X (2022) Relook into the risk factors of proximal junctional kyphosis in early onset scoliosis patients: Does the location of upper instrumented vertebra in relation to the sagittal apex matter? Orthop Surg 14:1695\u20131702. https:\/\/doi.org\/10.1111\/os.13380","journal-title":"Orthop Surg"},{"key":"4495_CR24","doi-asserted-by":"publisher","first-page":"742","DOI":"10.3171\/2023.5.Spine22752","volume":"39","author":"L Passfall","year":"2023","unstructured":"Passfall L, Imbo B, Lafage V, Lafage R, Smith JS, Line B, Schoenfeld AJ, Protopsaltis T, Daniels AH, Kebaish KM, Gum JL, Koller H, Hamilton DK, Hostin R, Gupta M, Anand N, Ames CP, Hart R, Burton D, Schwab FJ, Shaffrey CI, Klineberg EO, Kim HJ, Bess S, Passias PG (2023) The impact of baseline cervical malalignment on the development of proximal junctional kyphosis following surgical correction of thoracolumbar adult spinal deformity. J Neurosurg Spine 39:742\u2013750. https:\/\/doi.org\/10.3171\/2023.5.Spine22752","journal-title":"J Neurosurg Spine"},{"key":"4495_CR25","doi-asserted-by":"publisher","first-page":"292","DOI":"10.3171\/2017.8.Peds17357","volume":"21","author":"JH Cho","year":"2018","unstructured":"Cho JH, Hwang CJ, Choi YH, Lee DH, Lee CS (2018) Cervical sagittal alignment in patients with adolescent idiopathic scoliosis: Is it corrected by surgery? J Neurosurg Pediatr 21:292\u2013301. https:\/\/doi.org\/10.3171\/2017.8.Peds17357","journal-title":"J Neurosurg Pediatr"},{"key":"4495_CR26","doi-asserted-by":"publisher","first-page":"440","DOI":"10.3171\/2016.9.PEDS16298","volume":"19","author":"K Hayashi","year":"2017","unstructured":"Hayashi K, Toyoda H, Terai H, Suzuki A, Hoshino M, Tamai K, Ohyama S, Nakamura H (2017) Cervical lordotic alignment following posterior spinal fusion for adolescent idiopathic scoliosis: reciprocal changes and risk factors for malalignment. J Neurosurg Pediatr 19:440\u2013447. https:\/\/doi.org\/10.3171\/2016.9.PEDS16298","journal-title":"J Neurosurg Pediatr"},{"key":"4495_CR27","doi-asserted-by":"publisher","first-page":"177","DOI":"10.1097\/BRS.0b013e3181c77f8c","volume":"35","author":"MD Helgeson","year":"2010","unstructured":"Helgeson MD, Shah SA, Newton PO, Clements DH, Betz RR, Marks MC, Bastrom T (2010) Evaluation of proximal junctional kyphosis in adolescent idiopathic scoliosis following pedicle screw, hook, or hybrid instrumentation. Spine (Phila Pa 1976) 35:177\u2013181. https:\/\/doi.org\/10.1097\/BRS.0b013e3181c77f8c","journal-title":"Spine (Phila Pa 1976)"}],"container-title":["European Journal of Orthopaedic Surgery & Traumatology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s00590-025-04495-y.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/article\/10.1007\/s00590-025-04495-y","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s00590-025-04495-y.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,12,29]],"date-time":"2025-12-29T13:41:46Z","timestamp":1767015706000},"score":1,"resource":{"primary":{"URL":"https:\/\/link.springer.com\/10.1007\/s00590-025-04495-y"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,8,31]]},"references-count":27,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2025,12]]}},"alternative-id":["4495"],"URL":"https:\/\/doi.org\/10.1007\/s00590-025-04495-y","relation":{},"ISSN":["1432-1068"],"issn-type":[{"type":"electronic","value":"1432-1068"}],"subject":[],"published":{"date-parts":[[2025,8,31]]},"assertion":[{"value":"26 December 2024","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"20 August 2025","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"31 August 2025","order":3,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"The authors declare no conflict of  interests.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}}],"article-number":"370"}}