Flexibility analysis in adolescent idiopathic scoliosis on side-bending images using the EOS imaging system - 09/05/16
, B. Ilharreborde b, K. Mazda b
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Abstract |
Introduction |
Analysis of preoperative flexibility in adolescent idiopathic scoliosis (AIS) is essential to classify the curves, determine their structurality, and select the fusion levels during preoperative planning. Side-bending x-rays are the gold standard for the analysis of preoperative flexibility. The objective of this study was to examine the feasibility and performance of side-bending images taken in the standing position using the EOS imaging system.
Material and methods |
All patients who underwent preoperative assessment between April 2012 and January 2013 for AIS were prospectively included in the study. The work-up included standing AP and lateral EOS x-rays of the spine, standard side-bending x-rays in the supine position, and standing bending x-rays in the EOS booth. The irradiation dose was measured for each of the tests. Two-dimensional reducibility of the Cobb angle was measured on both types of bending x-rays.
Results |
The results were based on the 50 patients in the study. No significant difference was demonstrated for reducibility of the Cobb angle between the standing side-bending images with the EOS imaging system and those in the supine position for all types of Lenke deformation. The irradiation dose was five times lower during the EOS bending imaging.
Conclusion |
The standing side-bending images in the EOS device contributed the same results as the supine images, with five times less irradiation. They should therefore be used in clinical routine.
Level of evidence |
2.
Il testo completo di questo articolo è disponibile in PDF.Keywords : Low-dose stereography, Adolescent idiopathic scoliosis, Flexibility, Bending
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Vol 102 - N° 4
P. 495-500 - giugno 2016 Ritorno al numero
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