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FAQ-General
A fusion is a bony bridge between at least two other bones such as vertebrae in your spine. The vertebrae are the blocks of bone, which make up the bony part of the spine, similar to a child s building blocks stacked on top of each other like a tower. Normally, each vertebrae moves within certain limits in relationship to its neighbors. In spinal disease, the movement may become excessive and painful or the vertebrae may become unstable and move out of alignment putting pressure on the spinal nerves. In cases like this, surgeons try to build bony bridges between the vertebrae using pieces of bone, called bone graft. The bone graft may be obtained either from the patient's pelvis or from a bone bank.
There are advantages and disadvantages to either source. The bone graft is either laid next to the vertebrae or actually placed between the vertebral bodies (the rubbery disc, which normally lies between the vertebrae, must be removed). In either case, the bone graft has to heal and unite to the adjacent bones before the fusion is solid. Spine surgeons often use plates or rods to protect the bone graft and stabilize the spine while the fusion heals.
