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Kyphosis in fractures: evaluation of digital measuring
Objective: This study evaluates the manual and digital reliability and reproducibility of five methods of measuring deformity (kyphosis) in thoracolumbar burst fractures. Method: Ninety (90) tomographic images were evaluated and, in each case, kyphotic deformity was measured, both manually and digit...
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Published in: | Coluna 2014, Vol.13 (2), p.133-135 |
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Main Authors: | , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Objective: This study evaluates the manual and digital reliability and reproducibility of five methods of measuring deformity (kyphosis) in thoracolumbar burst fractures. Method: Ninety (90) tomographic images were evaluated and, in each case, kyphotic deformity was measured, both manually and digitally, through the five most relevant methods described in the literature. For the assessment of intraobserver error, 20 cases were measured again. Results: The results show that all five methods are highly reliable and digitally reproducible, with estimated error near or lower than that indicated in the intraobserver error analysis. Cobb's method had the highest concordance (96%) while the sagittal index had the lowest concordance (75%). It is also suggested that digital assessment is more reliable then the manual method. Conclusion: All tested methods are highly reliable and digitally reproducible.
Objetivo: Evaluar la fiabilidad y reproducibilidad manual y digital de los cinco métodos de medición de la deformidad (cifosis) en las fracturas toracolumbares por explosión. Métodos: Fueron evaluadas 90 imágenes de tomografía computadorizada y, en cada caso, se midió el valor angular de la deformidad cifótica, tanto en forma manual como digital, mediante los cinco métodos más relevantes descritos en la literatura actual. Se midieron de nuevo 20 exámenes para valorar el error intra-evaluador. Resultados: Los resultados muestran que los cinco métodos son muy fiables y reproducibles en forma digital, con un error estimado cercano o inferior al indicado en el análisis de error intra-evaluador, siendo que el método de Cobb presentó la mayor concordancia (96%) y el índice sagital, la concordancia más baja (75%). También se sugiere que la medición digital tiene fiabilidad superior a la manual. Conclusión: Todos los métodos testados son altamente fiables y reproducibles en forma digital.
Objetivo: Avaliar a confiabilidade e reprodutibilidade manual e digital dos cinco métodos de aferição da deformidade (cifose) na fratura toracolombar tipo explosão. Métodos: Foram avaliadas 90 imagens tomográficas e, em cada caso, foi medido o valor angular da deformidade em cifose, tanto de forma manual como de forma digital, através dos cinco métodos mais relevantes descritos na literatura atual. Foram novamente aferidos 20 exames para avaliação do erro intraexaminador. Resultados: Todos os cinco métodos são altamente confiáveis e reprodutíveis de forma digital, com erro estimado próximo |
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ISSN: | 1808-1851 2177-014X 1808-1851 |
DOI: | 10.1590/S1808-18512014130200322 |