“…However, several authors have called into question their ability to provide correction comparable to that obtained through modern spinal instrumentation. 1,5,8,11,20,21 8 Also, standardization of adequacy of side-bending radiographs is difficult and is partly dependent on patient participation and acceptance of the technique. Cheung et al reported that the difference between the mean angle on the lateral-bending radiograph and that on the postoperative radiograph was significant (p<0.001).…”