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Scoliosis is a three-dimensional deformity (coronal, axial, and sagittal), so it makes sense that a 3-D imaging method for evaluating the condition and measuring the impact of surgical correction would outperform traditional two-dimensional imaging techniques. That’s exactly what Newton et al. found in their Level II diagnostic study in the October 21, 2015 edition of The Journal of Bone & Joint Surgery.
The authors analyzed 3-D and 2-D images from 120 patients with adolescent idiopathic scoliosis (AIS), before and after surgery with segmented thoracic pedicle-screw instrumentation. The mean preoperative Cobb angle on the standard 2-D view was 55° ± 10°, while on the 3-D view it was 52° ± 9° (p ≤ 0.001).
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