Is There a Good Correlation between Pre-Operative Spine Bending Films and Post-Operative Values in Curve Magnitude in Idiopathic Scoliosis?

Standing and bending radiographies are pre-operative studies performed in patients with scoliosis to determine flexibility and appropriate treatment planning. The purpose of this study is to find correlation between pre-operative supine bending radiography and final scoliosis correction after surgery to find out if pre-operative bending radiographies could predict post operative final scoliosis correction. In a cross-sectional study، 83 patients with idiopathic scoliosis were studied and grouped based on Lenke classification of idiopathic scoliosis. Scoliosis curve was measured in standing and bending radiographs by 2 spine surgeons separately and the measurements were compared with post-operative curves. The post-operative measurements were always different from pre-operative bending film values. We cannot predict final scoliosis precisely from pre-operative supine bending radiographs in patients with idiopathic scoliosis.