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Recruited patients underwent two-dimensional low-dose biplanar anteroposterior full-length spine radiography and rasterstereography on the same day. Relationships between the TK angles measured were evaluated using Pearson correlation coefficients. Agreement between radiographic and rasterstereographic TK angles was evaluated using two-way intraclass correlation coefficients (ICCs) and Bland\u2013Altman plots. Proportional biases were assessed using the slope regression lines fitted to Bland\u2013Altman plots.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Results<\/jats:title>\n            <jats:p>The mean demographic and radiological characteristics of the 52 patients (20 girls; 39%) included were: age 13.1\u2009\u00b1\u20092\u00a0years; BMI 17.3\u2009\u00b1\u20092.8; and TK max. 50.4\u00b0\u2009\u00b1\u200910\u00b0. Rasterstereographic TK angles were strongly correlated with radiographic TK angles evaluated from T2\u2013T12 (r\u2009=\u20090.677) and from C7\u2013Max (r\u2009=\u20090.704), with \u2018good\u2019 agreement (ICC\u2009&gt;\u20090.75). A proportional bias was revealed in the slope regression line fitted to the Bland\u2013Altman plot from the C7\u2013Max radiography and the rasterstereography measurements (<jats:italic>p<\/jats:italic>\u2009=\u20090.034) but not from the T2\u2013T12 and rasterstereographic TK angles (<jats:italic>p<\/jats:italic>\u2009=\u20090.997).<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Conclusion<\/jats:title>\n            <jats:p>Rasterstereography is a reliable means of quantifying TK angles in Scheuermann\u2019s disease patients. It could directly reduce the number of radiographic scans patients need over time, minimising their radiation exposure.<\/jats:p>\n          <\/jats:sec>","DOI":"10.1007\/s00586-024-08610-1","type":"journal-article","created":{"date-parts":[[2024,12,17]],"date-time":"2024-12-17T15:28:53Z","timestamp":1734449333000},"page":"831-836","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Validating rasterstereography to evaluate thoracic kyphosis in patients with Scheuermann\u2019s disease"],"prefix":"10.1007","volume":"34","author":[{"given":"Ulysse","family":"Coneys","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anne","family":"Tabard-Foug\u00e8re","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nathaly","family":"Gavira","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Romain","family":"Dayer","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2024,12,17]]},"reference":[{"key":"8610_CR1","doi-asserted-by":"publisher","first-page":"522","DOI":"10.1055\/s-0043-1771334","volume":"27","author":"S Kaur","year":"2023","unstructured":"Kaur S, Lalam R (2023) Scheuermann\u2019s disease. 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