Affiliation:
1. Pontifícia Universidade Católica do Rio Grande do Sul, Brazil
2. University College, United Kingdom
3. Hospital Life Center, Brazil
Abstract
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.
Subject
Clinical Neurology,Orthopedics and Sports Medicine,Surgery
Reference17 articles.
1. Ortopedia e Traumatologia: princípios e prática;Herbert S,2009
2. Patient evaluation in idiopathic scoliosis: Radiographic assessment, trunk deformity and back asymmetry;Rigo M;Physiother Theory Pract,2011
3. Lovell and Winter's pediatric orthopaedics;Morrissy Raymond T,2006
4. Rothman-Simeone the spine;Herkowitz HN,2011
5. Campbell's operative orthopaedics;Canale ST,2008