{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,31]],"date-time":"2025-08-31T04:40:02Z","timestamp":1756615202645,"version":"3.44.0"},"reference-count":30,"publisher":"Springer Science and Business Media LLC","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2025,8,30]]},"DOI":"10.7759\/cureus.91312","type":"journal-article","created":{"date-parts":[[2025,8,31]],"date-time":"2025-08-31T04:04:23Z","timestamp":1756613063000},"source":"Crossref","is-referenced-by-count":0,"title":["Standing and Sitting Lumbopelvic-Hip Alignments and Mobilities Predict Proximal Junction Kyphosis and Hip Osteoarthritis Following Spinopelvic Fusion Surgery"],"prefix":"10.7759","author":[{"given":"Takuhei","family":"Kozaki","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Takahiro","family":"Kozaki","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hiroshi","family":"Hashizume","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hiroshi","family":"Iwasaki","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shunji","family":"Tsutsui","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Masanari","family":"Takami","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Daisuke","family":"Nishiyama","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hiroshi","family":"Yamada","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","reference":[{"key":"ref1","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(19)31125-0","article-title":"Adult spinal deformity","volume":"394","author":"Diebo BG","year":"2019","unstructured":"Diebo BG, Shah NV, Boachie-Adjei O, et al.. Adult spinal deformity. Lancet. 2019, 394:160-72. 10.1016\/S0140-6736(19)31125-0","journal-title":"Lancet"},{"key":"ref2","doi-asserted-by":"publisher","DOI":"10.1016\/j.rehab.2022.101685","article-title":"Prevalence and risk factors for scoliosis in adults with closed and open spina bifida: a large, cross-sectional study","volume":"66","author":"Cacioppo M","year":"2023","unstructured":"Cacioppo M, Menard H, Olivari Philiponnet C, et al.. Prevalence and risk factors for scoliosis in adults with closed and open spina bifida: a large, cross-sectional study. Ann Phys Rehabil Med. 2023, 66:10.1016\/j.rehab.2022.101685","journal-title":"Ann Phys Rehabil Med"},{"key":"ref3","doi-asserted-by":"publisher","DOI":"10.2174\/1874325001711011521","article-title":"Management of spinal deformities and evidence of treatment effectiveness","volume":"11","author":"Bettany-Saltikov J","year":"2017","unstructured":"Bettany-Saltikov J, Turnbull D, Ng SY, Webb R. Management of spinal deformities and evidence of treatment effectiveness. Open Orthop J. 2017, 11:1521-47. 10.2174\/1874325001711011521","journal-title":"Open Orthop J"},{"key":"ref4","doi-asserted-by":"publisher","DOI":"10.1016\/j.wneu.2022.10.068","article-title":"The relationship among surgeon experience, complications, and radiographic outcomes in spine deformity surgery: the experience of a junior surgeon","volume":"168","author":"Yearley AG","year":"2022","unstructured":"Yearley AG, Chalif JI, Chalif EJ, Zaidi HA. The relationship among surgeon experience, complications, and radiographic outcomes in spine deformity surgery: the experience of a junior surgeon. World Neurosurg. 2022, 168:399-407. 10.1016\/j.wneu.2022.10.068","journal-title":"World Neurosurg"},{"key":"ref5","doi-asserted-by":"publisher","DOI":"10.1097\/BRS.0b013e3181eeaee2","article-title":"Incidence, risk factors and classification of proximal junctional kyphosis: surgical outcomes review of adult idiopathic scoliosis","volume":"36","author":"Yagi M","year":"2011","unstructured":"Yagi M, Akilah KB, Boachie-Adjei O. Incidence, risk factors and classification of proximal junctional kyphosis: surgical outcomes review of adult idiopathic scoliosis. Spine (Phila Pa 1976). 2011, 36:60-8. 10.1097\/BRS.0b013e3181eeaee2","journal-title":"Spine (Phila Pa 1976)"},{"key":"ref6","doi-asserted-by":"publisher","DOI":"10.1097\/BRS.0000000000001493","article-title":"Predisposing characteristics of adjacent segment disease after lumbar fusion","volume":"41","author":"Alentado VJ","year":"2016","unstructured":"Alentado VJ, Lubelski D, Healy AT, Orr RD, Steinmetz MP, Benzel EC, Mroz TE. Predisposing characteristics of adjacent segment disease after lumbar fusion. Spine (Phila Pa 1976). 2016, 41:1167-72. 10.1097\/BRS.0000000000001493","journal-title":"Spine (Phila Pa 1976)"},{"key":"ref7","doi-asserted-by":"publisher","DOI":"10.1016\/j.spinee.2004.07.007","article-title":"Adjacent segment degeneration and adjacent segment disease: the consequences of spinal fusion?","volume":"4","author":"Hilibrand AS","year":"2004","unstructured":"Hilibrand AS, Robbins M. Adjacent segment degeneration and adjacent segment disease: the consequences of spinal fusion?. Spine J. 2004, 4:190-4. 10.1016\/j.spinee.2004.07.007","journal-title":"Spine J"},{"key":"ref8","doi-asserted-by":"publisher","DOI":"10.1016\/j.wneu.2017.02.126","article-title":"Upper thoracic versus lower thoracic as site of upper instrumented vertebrae for long fusion surgery in adult spinal deformity: a meta-analysis of proximal junctional kyphosis","volume":"102","author":"Luo M","year":"2017","unstructured":"Luo M, Wang P, Wang W, Shen M, Xu G, Xia L. Upper thoracic versus lower thoracic as site of upper instrumented vertebrae for long fusion surgery in adult spinal deformity: a meta-analysis of proximal junctional kyphosis. World Neurosurg. 2017, 102:200-8. 10.1016\/j.wneu.2017.02.126","journal-title":"World Neurosurg"},{"key":"ref9","doi-asserted-by":"publisher","DOI":"10.1007\/s00586-020-06700-4","article-title":"Adjacent segment disease on hip joint as a complication of spinal fusion surgery including sacroiliac joint fixation","volume":"30","author":"Kozaki T","year":"2021","unstructured":"Kozaki T, Hashizume H, Nishiyama D, et al.. Adjacent segment disease on hip joint as a complication of spinal fusion surgery including sacroiliac joint fixation. Eur Spine J. 2021, 30:1314-19. 10.1007\/s00586-020-06700-4","journal-title":"Eur Spine J"},{"key":"ref10","doi-asserted-by":"publisher","DOI":"10.1007\/s00586-022-07344-2","article-title":"S2 alar-iliac screw loosening as a preventive factor for hip joint osteoarthritis after adult spinal deformity surgery: a case-control study","volume":"31","author":"Kozaki T","year":"2022","unstructured":"Kozaki T, Hashizume H, Taniguchi T, et al.. S2 alar-iliac screw loosening as a preventive factor for hip joint osteoarthritis after adult spinal deformity surgery: a case-control study. Eur Spine J. 2022, 31:3081-8. 10.1007\/s00586-022-07344-2","journal-title":"Eur Spine J"},{"key":"ref11","doi-asserted-by":"publisher","DOI":"10.1097\/BRS.0000000000004791","article-title":"Effect of lumbar fusion and pelvic fixation rigidity on hip joint stress: a finite element analysis","volume":"48","author":"Kozaki T","year":"2023","unstructured":"Kozaki T, Lundberg HJ, Mell SP, et al.. Effect of lumbar fusion and pelvic fixation rigidity on hip joint stress: a finite element analysis. Spine (Phila Pa 1976). 2023, 48:355-61. 10.1097\/BRS.0000000000004791","journal-title":"Spine (Phila Pa 1976)"},{"key":"ref12","doi-asserted-by":"publisher","DOI":"10.1097\/BRS.0000000000003452","article-title":"Preoperative and postoperative sitting radiographs for adult spinal deformity surgery: upper instrumented vertebra selection using sitting C2 plumb line distance to prevent proximal junctional kyphosis","volume":"45","author":"Yoshida G","year":"2020","unstructured":"Yoshida G, Ushirozako H, Hasegawa T, et al.. Preoperative and postoperative sitting radiographs for adult spinal deformity surgery: upper instrumented vertebra selection using sitting C2 plumb line distance to prevent proximal junctional kyphosis. Spine (Phila Pa 1976). 2020, 45:950-8. 10.1097\/BRS.0000000000003452","journal-title":"Spine (Phila Pa 1976)"},{"key":"ref13","doi-asserted-by":"publisher","DOI":"10.3171\/2018.2.SPINE17749","article-title":"The value of sitting radiographs: analysis of spine flexibility and its utility in preoperative planning for adult spinal deformity surgery","volume":"29","author":"Janjua MB","year":"2018","unstructured":"Janjua MB, Tishelman JC, Vasquez-Montes D, Vaynrub M, Errico TJ, Buckland AJ, Protopsaltis T. The value of sitting radiographs: analysis of spine flexibility and its utility in preoperative planning for adult spinal deformity surgery. J Neurosurg Spine. 2018, 29:414-21. 10.3171\/2018.2.SPINE17749","journal-title":"J Neurosurg Spine"},{"key":"ref14","doi-asserted-by":"publisher","DOI":"10.1007\/s11999-016-4787-2","article-title":"Does degenerative lumbar spine disease influence femoroacetabular flexion in patients undergoing total hip arthroplasty?","volume":"474","author":"Esposito CI","year":"2016","unstructured":"Esposito CI, Miller TT, Kim HJ, et al.. Does degenerative lumbar spine disease influence femoroacetabular flexion in patients undergoing total hip arthroplasty?. Clin Orthop Relat Res. 2016, 474:1788-97. 10.1007\/s11999-016-4787-2","journal-title":"Clin Orthop Relat Res"},{"key":"ref15","doi-asserted-by":"publisher","DOI":"10.1186\/s12891-020-3043-9","article-title":"Degeneration of three or more lumbar discs significantly decreases lumbar spine\/hip ROM ratio during position change from standing to sitting in AVN patients before THA","volume":"21","author":"Gu J","year":"2020","unstructured":"Gu J, Feng H, Feng X, Zhou Y. Degeneration of three or more lumbar discs significantly decreases lumbar spine\/hip ROM ratio during position change from standing to sitting in AVN patients before THA. BMC Musculoskelet Disord. 2020, 21:39. 10.1186\/s12891-020-3043-9","journal-title":"BMC Musculoskelet Disord"},{"key":"ref16","doi-asserted-by":"publisher","DOI":"10.1097\/BRS.0000000000003836","article-title":"Simulation of implant impingement after spinal corrective fusion surgery in patients with previous total hip arthroplasty: a retrospective case series","volume":"46","author":"Yamato Y","year":"2021","unstructured":"Yamato Y, Furuhashi H, Hasegawa T, et al.. Simulation of implant impingement after spinal corrective fusion surgery in patients with previous total hip arthroplasty: a retrospective case series. Spine (Phila Pa 1976). 2021, 46:512-19. 10.1097\/BRS.0000000000003836","journal-title":"Spine (Phila Pa 1976)"},{"key":"ref17","doi-asserted-by":"publisher","DOI":"10.1007\/s00590-020-02764-6","article-title":"Dislocation rate and its risk factors in total hip arthroplasty with concurrent extensive spinal corrective fusion with pelvic fixation for adult spinal deformity","volume":"31","author":"Furuhashi H","year":"2021","unstructured":"Furuhashi H, Yamato Y, Hoshino H, et al.. Dislocation rate and its risk factors in total hip arthroplasty with concurrent extensive spinal corrective fusion with pelvic fixation for adult spinal deformity. Eur J Orthop Surg Traumatol. 2021, 31:283-90. 10.1007\/s00590-020-02764-6","journal-title":"Eur J Orthop Surg Traumatol"},{"key":"ref18","doi-asserted-by":"publisher","DOI":"10.1016\/j.spinee.2016.08.026","article-title":"Differences in erect sitting and natural sitting spinal alignment-insights into a new paradigm and implications in deformity correction","volume":"17","author":"Hey HW","year":"2017","unstructured":"Hey HW, Wong CG, Lau ET, Tan KA, Lau LL, Liu KG, Wong HK. Differences in erect sitting and natural sitting spinal alignment-insights into a new paradigm and implications in deformity correction. Spine J. 2017, 17:183-9. 10.1016\/j.spinee.2016.08.026","journal-title":"Spine J"},{"key":"ref19","doi-asserted-by":"publisher","DOI":"10.1302\/2058-5241.3.170020","article-title":"Spine-hip relations in patients with hip osteoarthritis","volume":"3","author":"Rivi\u00e8re C","year":"2018","unstructured":"Rivi\u00e8re C, Lazic S, Dagneaux L, Van Der Straeten C, Cobb J, Muirhead-Allwood S. Spine-hip relations in patients with hip osteoarthritis. EFORT Open Rev. 2018, 3:39-44. 10.1302\/2058-5241.3.170020","journal-title":"EFORT Open Rev"},{"key":"ref20","doi-asserted-by":"publisher","DOI":"10.1007\/s00590-015-1603-8","article-title":"Measuring extension of the lumbar-pelvic-femoral complex with the EOS\u00ae system","volume":"25","author":"Lazennec JY","year":"2015","unstructured":"Lazennec JY, Brusson A, Folinais D, Zhang A, Pour AE, Rousseau MA. Measuring extension of the lumbar-pelvic-femoral complex with the EOS\u00ae system. Eur J Orthop Surg Traumatol. 2015, 25:1061-8. 10.1007\/s00590-015-1603-8","journal-title":"Eur J Orthop Surg Traumatol"},{"key":"ref21","doi-asserted-by":"publisher","DOI":"10.1097\/BRS.0b013e3181a13c08","article-title":"Sagittal plane considerations and the pelvis in the adult patient","volume":"34","author":"Schwab F","year":"2009","unstructured":"Schwab F, Lafage V, Patel A, Farcy JP. Sagittal plane considerations and the pelvis in the adult patient. Spine (Phila Pa 1976). 2009, 34:1828-33. 10.1097\/BRS.0b013e3181a13c08","journal-title":"Spine (Phila Pa 1976)"},{"key":"ref22","doi-asserted-by":"publisher","DOI":"10.1136\/ard.16.4.494","article-title":"Radiological assessment of osteo-arthrosis","volume":"16","author":"KE JH","year":"1957","unstructured":"KE JH, LA JS. Radiological assessment of osteo-arthrosis. Ann Rheum Dis. 1957, 16:494-502. 10.1136\/ard.16.4.494","journal-title":"Ann Rheum Dis"},{"key":"ref23","doi-asserted-by":"publisher","DOI":"10.1227\/NEU.0b013e31828bacd8","article-title":"Proximal junctional kyphosis in primary adult deformity surgery: evaluation of 20 degrees as a critical angle","volume":"72","author":"Bridwell KH","year":"2013","unstructured":"Bridwell KH, Lenke LG, Cho SK, et al.. Proximal junctional kyphosis in primary adult deformity surgery: evaluation of 20 degrees as a critical angle. Neurosurgery. 2013, 72:899-906. 10.1227\/NEU.0b013e31828bacd8","journal-title":"Neurosurgery"},{"key":"ref24","doi-asserted-by":"publisher","DOI":"10.3171\/2014.3.FOCUS13541","article-title":"Long fusion from sacrum to thoracic spine for adult spinal deformity with sagittal imbalance: upper versus lower thoracic spine as site of upper instrumented vertebra","volume":"36","author":"Fujimori T","year":"2014","unstructured":"Fujimori T, Inoue S, Le H, et al.. Long fusion from sacrum to thoracic spine for adult spinal deformity with sagittal imbalance: upper versus lower thoracic spine as site of upper instrumented vertebra. Neurosurg Focus. 2014, 36:9. 10.3171\/2014.3.FOCUS13541","journal-title":"Neurosurg Focus"},{"key":"ref25","doi-asserted-by":"publisher","DOI":"10.1097\/01.brs.0000143667.55696.bd","article-title":"Segmental motion adjacent to an instrumented lumbar fusion: the effect of extension of fusion to the sacrum","volume":"29","author":"Untch C","year":"2004","unstructured":"Untch C, Liu Q, Hart R. Segmental motion adjacent to an instrumented lumbar fusion: the effect of extension of fusion to the sacrum. Spine (Phila Pa 1976). 2004, 29:2376-81. 10.1097\/01.brs.0000143667.55696.bd","journal-title":"Spine (Phila Pa 1976)"},{"key":"ref26","doi-asserted-by":"publisher","DOI":"10.1016\/j.spinee.2016.03.056","article-title":"How the spine differs in standing and in sitting-important considerations for correction of spinal deformity","volume":"17","author":"Hey HW","year":"2017","unstructured":"Hey HW, Teo AQ, Tan KA, Ng LW, Lau LL, Liu KG, Wong HK. How the spine differs in standing and in sitting-important considerations for correction of spinal deformity. Spine J. 2017, 17:799-806. 10.1016\/j.spinee.2016.03.056","journal-title":"Spine J"},{"key":"ref27","doi-asserted-by":"publisher","DOI":"10.1177\/2192568220962436","article-title":"Variations of sagittal alignment in standing versus sitting positions under the Roussouly classification in asymptomatic subjects","volume":"12","author":"Sun Z","year":"2022","unstructured":"Sun Z, Zhou S, Jiang S, Zou D, Yu M, Li W. Variations of sagittal alignment in standing versus sitting positions under the Roussouly classification in asymptomatic subjects. Global Spine J. 2022, 12:772-9. 10.1177\/2192568220962436","journal-title":"Global Spine J"},{"key":"ref28","doi-asserted-by":"publisher","DOI":"10.1007\/s00586-022-07483-6","article-title":"Spinopelvic fusion surgery from lower thoracic spine to pelvis increased hip joint moment-motion analysis","volume":"32","author":"Kozaki T","year":"2023","unstructured":"Kozaki T, Hashizume H, Oka H, et al.. Spinopelvic fusion surgery from lower thoracic spine to pelvis increased hip joint moment-motion analysis. Eur Spine J. 2023, 32:727-33. 10.1007\/s00586-022-07483-6","journal-title":"Eur Spine J"},{"key":"ref29","doi-asserted-by":"publisher","DOI":"10.22603\/ssrr.2021-0231","article-title":"Lumbar fusion including sacroiliac joint fixation increases the stress and angular motion at the hip joint: a finite element study","volume":"6","author":"Kozaki T","year":"2022","unstructured":"Kozaki T, Hashizume H, Oka H, et al.. Lumbar fusion including sacroiliac joint fixation increases the stress and angular motion at the hip joint: a finite element study. Spine Surg Relat Res. 2022, 6:681-8. 10.22603\/ssrr.2021-0231","journal-title":"Spine Surg Relat Res"},{"key":"ref30","doi-asserted-by":"publisher","DOI":"10.1093\/rheumatology\/37.11.1193","article-title":"Acetabular dysplasia and hip osteoarthritis in Britain and Japan","volume":"37","author":"Yoshimura N","year":"1998","unstructured":"Yoshimura N, Campbell L, Hashimoto T, et al.. Acetabular dysplasia and hip osteoarthritis in Britain and Japan. Br J Rheumatol. 1998, 37:1193-7. 10.1093\/rheumatology\/37.11.1193","journal-title":"Br J Rheumatol"}],"container-title":["Cureus"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cureus.com\/articles\/356271-standing-and-sitting-lumbopelvic-hip-alignments-and-mobilities-predict-proximal-junction-kyphosis-and-hip-osteoarthritis-following-spinopelvic-fusion-surgery","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,8,31]],"date-time":"2025-08-31T04:04:24Z","timestamp":1756613064000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cureus.com\/articles\/356271-standing-and-sitting-lumbopelvic-hip-alignments-and-mobilities-predict-proximal-junction-kyphosis-and-hip-osteoarthritis-following-spinopelvic-fusion-surgery"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,8,30]]},"references-count":30,"URL":"https:\/\/doi.org\/10.7759\/cureus.91312","relation":{},"ISSN":["2168-8184"],"issn-type":[{"value":"2168-8184","type":"print"}],"subject":[],"published":{"date-parts":[[2025,8,30]]}}}