Studies of stress riser of Harrington rod in the treatment of thoracolumbar spinal fractures

English Keywords:Harrington rod,Stress riser,Biomechanics,Photoelastics,Thoracolumbar fracture

English Abstract:

  The stress distribition of Harrington distraction rod (HDR) was studied by 2-D photoelastics. The loads included horizontal forces on the middle of the rod and vertical forces on the two ending hooks. The experimental results showed that the stresses on r