Prost Max, Windolf Joachim, Konieczny Markus Rafael
Department of Orthopedic and Trauma Surgery, Medical Faculty and University Hospital Duesseldorf, Heinrich-Heine-University Duesseldorf, Düsseldorf, Germany.
Eur Spine J. 2021 Dec;30(12):3490-3497. doi: 10.1007/s00586-021-06945-7. Epub 2021 Jul 31.
There is no data that show if it is possible to determine if a curve is structural or non-structural or to assess flexibility of an adolescent idiopathic scoliosis (AIS) by recumbent images like a CT scan (CTS) instead of bending radiographs (BR). We investigated if the results of BR may be compared to those of CTS.
We retrospectively analyzed prospectively collected data of patients with AIS in whom a selective spinal fusion was performed and in whom a CTS, BR, and full spine x-rays were made preoperatively. We measured the Cobb angles of the main and the minor curve in full spine x-ray, BR, and CTS.
After applying inclusion and exclusion criteria, 39 patients were included. We found a strong correlation (r = 0.806, p < 0.01) between the Cobb angle of the main curve in BR and the Cobb angle of the main curve in the CTS and between the Cobb angle of the minor curve in BR and the Cobb angle of the minor curve in the CTS (r = 0.601, p < 0.01). All patients with a minor curve of less than 25 degrees in the BR had a Cobb angle of less than 35 degrees in the CTS.
Spinal curves showed a significant correlation between bending radiographs and recumbent images (CTS). In our group of patients, a Cobb angle of the minor curve of less than 35 degrees in the CTS indicated that this minor curve was non-structural.
尚无数据表明是否可以通过像CT扫描（CTS）这样的卧位图像而非弯曲位X线片（BR）来确定曲线是结构性还是非结构性，或评估青少年特发性脊柱侧凸（AIS）的柔韧性。我们研究了BR的结果是否可以与CTS的结果进行比较。
我们回顾性分析了前瞻性收集的行选择性脊柱融合术的AIS患者的数据，这些患者术前进行了CTS、BR和全脊柱X线检查。我们测量了全脊柱X线片、BR和CTS中主弯和次弯的Cobb角。
应用纳入和排除标准后，纳入了39例患者。我们发现BR中主弯的Cobb角与CTS中主弯的Cobb角之间以及BR中次弯的Cobb角与CTS中次弯的Cobb角之间存在强相关性（r = 0.806，p < 0.01）（r = 0.601，p < 0.01）。BR中次弯小于25度的所有患者CTS中的Cobb角均小于35度。
脊柱曲线在弯曲位X线片和卧位图像（CTS）之间显示出显著相关性。在我们的患者组中，CTS中次弯的Cobb角小于35度表明该次弯是非结构性的。
