• Eur Spine J · Jan 1999

    A new method to measure vertebral rotation from CT scans.

    • S Göçen, H Havitçioğlu, and E Alici.
    • Department of Orthopedics and Traumatology, Dokuz Eylül University School of Medicine, Izmir, Turkey.
    • Eur Spine J. 1999 Jan 1; 8 (4): 261-5.

    AbstractCT measurement methods have good reliability for idiopathic scoliosis transverse plane deformity evaluation. However, because of application difficulties and variations in how these methods are applied, more sensitive methods are needed. This paper presents a new method for measurement of vertebral rotation from tomographic scans. First, the method was subject to clinical, intra-observer and inter-observer analysis. Twenty-three patients with adolescent idiopathic scoliosis were studied to test the clinical reliability of this method. There were no statistical differences between the results of the new method and Ho's method (P = 0.3380) in the clinical study. Intraobserver and inter-observer analysis showed that this method was reliable. An experimental study was then conducted to show the confidence limits of our new method, which were found to be +/-1.6 degrees, and there was no significant difference between the mean rotation value obtained from CT scans using our new method and that obtained using the mechanical method. These results suggest that our new method is a simple, practical and reliable method for measurement of vertebral rotation from CT scans.

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