Depending upon the severity and responsiveness to other treatment surgery may be recommended for the scoliosis. Surgical correction involves correcting the curve (although not all the way) and fusing the bones in the curve together. Bone grafts are laid across the exposed surface of each vertebra. These grafts will regenerate, grow into the bone, and fuse the vertebrae together. The bones are held in place with one or two metal rods held down with hooks and screws, which also helps to support the fusion of the vertebrae.