Two New Improved Methods for Determination of Cobb's Angle of Scoliosis
Hellen, D. W.; Teusner, M.
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Cobbs traditional method for measuring the angle of scoliosis is complicated and error-prone in application. Angles measured with this method are inaccurate and it therefore stands to reason to search for improved procedures. We propose Cobbs angle to be determined by two novel methods: the distance method and the two-angle method. Using mathematical error analysis and experimental test measurings we demonstrate that the two proposed methods offer significant advantages over the current standard. They simplify the measurement process and increase outcome accuracy. For Cobbs angles larger than 30 degrees, the two-angle method reduces the error-variation by approx. 25%. For Cobbs angles below 30 degrees the distance method reduces the error-variation by approx. 50%.
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