Fig. 3
The pre-operative radiograph and CT (Fig. 3 a-d) shows scoliosis with a coronal Cobb angle of 54.0o. The AVT was 61mm and the flexibility was 53.7%. The pre-operative MRI (Fig. 3 e) shows a tethered spinal cord and the conus medularis located at the L4-L5 level. The post-operative radiographs and CT (Fig. 3 f-h) shows that the coronal Cobb angle is decreased to approximately 22o. The VAT decreased to 36mm and the OP correction rate was 66.7%. The post-operative MRI (Fig. 3 i) shows the conus medularis has no upward movement and is still located at the L4-L5 level. The radiograph (Fig. 3 j) at the 1-year follow-up evaluations shows no correction loss after the operation and the final correction was 66.7%