Coluna/Columna ()

APPLICABILITY OF THE COBB ANGLE MEASUREMENT IN IDIOPATHIC SCOLIOSIS USING SCANNED IMAGING

  • ERASMO DE ABREU ZARDO,
  • MARCUS SOFIA ZIEGLER,
  • AFRANE SERDEIRA,
  • CARLOS MARCELO DONAZAR SEVERO,
  • RODRIGO VALENTE FRAST,
  • PAULO RENATO RECH,
  • LAURO TOFFOLO,
  • RENATA SICILIANI SCALCO,
  • CARLA HELENA AUGUSTIN SCHWANKE

DOI
https://doi.org/10.1590/s1808-185120171601153058
Journal volume & issue
Vol. 16, no. 1
pp. 22 – 24

Abstract

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ABSTRACT Objectives: To compare the measurement of the Cobb angle on printed radiographs and on scanned radiographs viewed through the software "PixViewer". Methods: Preoperative radiographs of 23 patients were evaluated on printed films and through the software "PixViewer". The same evaluator, a spine surgeon, chose the proximal and distal limiting vertebrae of the main curve on printed radiographs, without identification of patients, and measured the Cobb angle based on these parameters. The same parameters and measurements were applied to scanned radiographs. The measurements were compared, as well as the choice of limiting vertebrae. Results: The average variation of the Cobb angle between methods was 1.48 ± 1.73°. The intraclass correlation coefficient (ICC) was 0.99, demonstrating excellent reproducibility. Conclusion: The Cobb method can be used to evaluate scoliosis through the "PixViewer" tool with the same reliability as the classic method on printed radiographs.

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