In adolescent idiopathic scoliosis patients, the vicious cycle hypothesis proposed by Dr. Stokes [1] suggests, a lateral spinal curvature produces asymmetrical loading of the skeletally immature spine, which in turn causes asymmetrical growth and therefore progressive wedging deformity. Numerous studies have been done to evaluate the effect of sustained compression-tension loading on spinal growth. Despite all this research, only [2] investigated the effect of torque on segmented bodies. However, the previous study did not have independent control of torque and bending moments. Since a coupling mechanism between the torque and bending moments may be involved in the development of spinal curvature, it is important to separate the torque and bending moments so that the effect of the torque may be fully understood.
The immature spine: growth and idiopathic scoliosis
