Spine Fusion Instrumentation is a method of keeping the spine rigid after spinal fusion surgery by surgically attaching hooks, rods, and wire to the spine in a way that redistributes the stresses on the bones and keeps them in proper alignment while the bones of the spine fuse. Mainly used to treat instability and deformity of the spine. Instability occurs when the spine no longer maintains its normal shape during movement. Such instability results in nerve damage, spinal deformities, and disabling pain. Scoliosis (scoliosis) is a side-to-side spinal curvature. Kyphosis is a front-to-back curvature of the upper spine. Different types of instrumentation are used to treat different spinal problems. But they all have the same purpose - to correct and stabilize the backbone while the bones of the spine fuse.