The posterior approach for scoliosis surgery is done from the back of the body. It involves making a long, straight incision into the back and moving aside the back muscles to reveal the spine.Rods, wires, hooks, or screws are attached to the spine in various ways. The spine is repositioned and held in place with these mechanisms while the new bone surface fuses. Bone grafts, often taken from the person's pelvic bone or ribs, are put in place to help the spinal bones fuse together in a permanent position over time.
The anterior approach for scoliosis surgery is done through an incision made in the front or, more commonly, the side of the body. The anterior approach may be used for middle or lower spinal curves.This technique is better for severe curves, including rigid curves in adults. But it has greater surgical risks than posterior surgery alone. Surgeons often use both the anterior and posterior approaches when they operate on a person who has scoliosis. Using this combination of techniques, surgeons can remove discs in the spine and graft bone into the spaces. This is done to help make the spine more correctable.Other techniques done with an anterior approach use large metal screws that are attached to each vertebra. Each screw has a large head with a hole for the passage of a rod that is tightened at each level. A brace or cast may be needed for about 6 months following surgery. This technique is not recommended for children younger than 10 years because of the small size of their
The Risser sign helps measures the risk that a curve in the spine (scoliosis) will get worse, or progress. It measures how much mature bone has developed (ossification) in the upper rim of the pelvis (iliac crest). Values range from 0 (least ossification and greatest risk of progression) to 5 (complete ossification and least risk of progression). This is determined by an X-ray.
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