Tabard-Fougère Anne, de Bodman Charlotte, Dhouib Amira, Bonnefoy-Mazure Alice, Armand Stéphane, Dayer Romain
Division of Pediatric Orthopaedics, Geneva University Hospitals, University of Geneva, 1205 Geneva, Switzerland.
Department of Radiology, Reseau Hospitalier Neuchatelois, 2000 Neuchatel, Switzerland.
Diagnostics (Basel). 2023 Jul 20;13(14):2431. doi: 10.3390/diagnostics13142431.
(1) Background: Adolescent Idiopathic Scoliosis (AIS) is a three-dimensional (3D) spine deformity. The Cobb angle, evaluated with 2D radiography, is the gold standard to determine curve severity. The primary aim of this study was to evaluate the 3D spinal evaluation with rasterstereography in patients with AIS. The hypothesis was that rasterstereography reached higher accuracy than the gold standard 2D radiography. The second aim was to compare rasterstereography with 3D radiography. The hypothesis was that the rasterstereographic evaluation of patients with severe major scoliosis curves is closer to 3D radiography compared to the gold standard (2D radiography). (2) Methods: This is a prospective comparative study of a consecutive series of 53 patients, with the scoliosis curve evaluated with two 3D methods and the gold standard (2D radiography). (3) Results: The hypothesis that rasterstereography reached higher accuracy than the gold standard 2D radiography was validated for all curves. Even if all curves were highly correlated, both rasterstereography and 2D radiography scoliosis evaluation were underestimated for moderate/severe curves compared to 3D radiography. (4) Conclusions: The rasterstereographic evaluation of major curve scoliosis is not accurate enough to replace 2D radiography for moderate/severe curves. A longitudinal follow-up should be assessed in future studies to define the sensitivity of the detection of a significant change in the scoliotic mild and moderate curve (<40°).
(1) 背景：青少年特发性脊柱侧凸（AIS）是一种三维脊柱畸形。通过二维X线摄影评估的Cobb角是确定侧弯严重程度的金标准。本研究的主要目的是评估光栅立体摄影术对AIS患者的三维脊柱评估。假设是光栅立体摄影术比金标准二维X线摄影具有更高的准确性。第二个目的是将光栅立体摄影术与三维X线摄影进行比较。假设是与金标准（二维X线摄影）相比，光栅立体摄影术对严重主要脊柱侧弯曲线患者的评估更接近三维X线摄影。(2) 方法：这是一项对连续53例患者的前瞻性比较研究，采用两种三维方法和金标准（二维X线摄影）对脊柱侧弯曲线进行评估。(3) 结果：光栅立体摄影术比金标准二维X线摄影具有更高准确性的假设在所有曲线上均得到验证。即使所有曲线都具有高度相关性，但与三维X线摄影相比，光栅立体摄影术和二维X线摄影对中度/重度曲线的脊柱侧弯评估均被低估。(4) 结论：对于中度/重度曲线，主要曲线脊柱侧弯的光栅立体摄影评估不够准确，无法替代二维X线摄影。未来的研究应进行纵向随访，以确定对轻度和中度脊柱侧弯曲线（<40°）显著变化检测的敏感性。
