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Novel Screening Tool for Adolescent Idiopathic Scoliosis: A Reliability Study

Published:September 30, 2022DOI:https://doi.org/10.1016/j.jmpt.2022.08.001

      Abstract

      Objective

      The aim of this study was to assess the agreement between a web-based scoliosis screening tool and a standard screening procedure.

      Methods

      Sixty participants were selected (median age, 12 years; 75% were women) and separated into 2 groups: those with unknown spinal curvature status and those with confirmed scoliosis. Each participant was assessed by 2 blinded assessors, with one measuring the angle of trunk rotation using a scoliometer and the second using a web-based screening application. The app provided a relative risk score for having scoliosis based on a weighted algorithm. Those with an angle of trunk rotation ≥7° or risk score >2 were deemed as being at risk for having scoliosis.

      Results

      There was fair agreement (kappa = 0.34; 95% confidence interval [CI], 0.14-0.55; P < .001) between the app and the scoliometer among the unconfirmed cases. The McNemar test indicated a difference in the proportion of positive tests (P = .001), whereby the screening app produced a significantly higher number of positive tests (15/53 = 28.3%) compared to the standard screening procedure (4/53 = 7.5%) for unconfirmed cases. Among the confirmed cases, the app correctly identified 5 out of 7 (sensitivity: 71%; 95% CI, 29%-96%) participants, whereas the scoliometer correctly identified 6 out of 7 (sensitivity: 86%; 95% CI, 42%-100%) participants.

      Conclusion

      These findings indicate fair agreement between the app and the scoliometer, though it was not possible to precisely estimate the sensitivity of the app in this study.

      Key Indexing Terms

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