{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,24]],"date-time":"2026-09-24T02:31:41Z","timestamp":1790217101738,"version":"4.1.0"},"reference-count":27,"publisher":"Springer Science and Business Media LLC","issue":"4","license":[{"start":{"date-parts":[[2021,12,15]],"date-time":"2021-12-15T00:00:00Z","timestamp":1639526400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2021,12,15]],"date-time":"2021-12-15T00:00:00Z","timestamp":1639526400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"funder":[{"name":"Universit\u00e4tsklinikum RWTH Aachen"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Eur Spine J"],"published-print":{"date-parts":[[2022,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec>\n                <jats:title>Introduction<\/jats:title>\n                <jats:p>While the effects of VBT on coronal parameters have been investigated in various studies, this has not yet been the case for sagittal parameters. This is of particular relevance considering that VBT does not allow direct correction of the sagittal profile. Thus, we investigated the effects of VBT on sagittal parameters in patients with adolescent idiopathic scoliosis.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Materials and methods<\/jats:title>\n                <jats:p>Retrospective, 2-Center study. Patients who underwent VBT and presented a 2-years follow-up were included. The differences in sagittal parameters were evaluated, along with modifications of sagittal profile following Abelin-Genevois\u2019 classification.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Results<\/jats:title>\n                <jats:p>Data from 86 patients were obtained. Mean Cobb angle was 52.4\u2009\u00b1\u200913.9\u00b0 at thoracic level and 47.6\u2009\u00b1\u200914.3\u00b0 at lumbar level before surgery, and 28.5\u2009\u00b1\u200913.6 and 26.6\u2009\u00b1\u200912.7\u00b0 at the 2-year follow-up, respectively. Mean thoracic kyphosis increased from 28.3\u2009\u00b1\u200913.8 to 33\u2009\u00b1\u200913\u00b0, the lumbar lordosis (LL) was unvaried (from 47.5\u2009\u00b1\u200913.1 to 48.4\u2009\u00b1\u200913.5\u00b0), PT decreased from 9.4\u2009\u00b1\u20098.5 to 7.4\u2009\u00b1\u20096.1\u00b0, the sagittal vertical axis SVA decreased from 4.5\u2009\u00b1\u200931.4 to \u2212\u20093.6\u2009\u00b1\u200927.9\u00a0mm. No kyphotic effect on LL in patients who underwent lumbar instrumentation was observed. Before surgery, 39 patients had a type 1 sagittal profile, 18 were type 2a, 14 type 2b and 15 type 3. Postoperatively, 54 were type 1, 8 were 2a, 13 were 2b and 11 were type 3.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Conclusions<\/jats:title>\n                <jats:p>VBT positively influences sagittal parameters and does not have a kyphotic effect on LL.<\/jats:p>\n              <\/jats:sec>","DOI":"10.1007\/s00586-021-07076-9","type":"journal-article","created":{"date-parts":[[2021,12,15]],"date-time":"2021-12-15T11:04:37Z","timestamp":1639566277000},"page":"1060-1066","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":26,"title":["The effects of vertebral body tethering on sagittal parameters: evaluations from a 2-years follow-up"],"prefix":"10.1007","volume":"31","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4383-3470","authenticated-orcid":false,"given":"Alice","family":"Baroncini","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Aurelien","family":"Courvoisier","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pedro","family":"Berjano","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Filippo","family":"Migliorini","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J\u00f6rg","family":"Eschweiler","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Philipp","family":"Kobbe","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Frank","family":"Hildebrand","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Per David","family":"Trobisch","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2021,12,15]]},"reference":[{"issue":"22","key":"7076_CR1","doi-asserted-by":"publisher","first-page":"E1483","DOI":"10.1097\/BRS.0000000000003643","volume":"45","author":"A Alanay","year":"2020","unstructured":"Alanay A, Yucekul A, Abul K, Ergene G, Senay S, Ay B, Cebeci BO, Yalinay Dikmen P, Zulemyan T, Yavuz Y, Yilgor C (2020) Thoracoscopic vertebral body tethering for adolescent idiopathic scoliosis: follow-up curve behavior according to sanders skeletal maturity staging. 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PB: Nuvasive (personal fees), Depuy Synthes (personal fees), Medacta (personal fees), Zimmer Biomet (personal fees), K2M (personal fees), Medtronic (personal fees), Stoeckli Medical (grants). AC: Zimmer Biomet (personal fees). AB, FM, JE, FH, PK: none.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}},{"value":"RWTH Aachen, Faculty of Medicine, approval EK 130\/19.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethical approval"}},{"value":"Due to the retrospective nature of the study, consent to participate or for publication was not required.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent to participate"}}]}}