The Basic Overview Of A Spinal Fusion For Spondylolisthesis
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In a degenerative spondylolisthesis, one vertebrae slips forward on another and in the process may pinch a nerve root. This can result in sciatica on a repetitive process and may be extremely problematic and painful for patients on a daily basis. This is termed spinal stenosis. Pain may radiate down to the legs and feet and cause difficulty with ambulation, work ability, recreational activities, and hinder social efforts.
A fusion of the spine may considerably help if conservative measures fail to alleviate the pain. Conservative measures include pain management options that may be interventional pain management (epidural injections), pain medications, Scottsdale physical therapy, Phoenix chiropractic, or spinal decompression therapy.
During a spine fusion, the spine surgeon initially takes away the lamina, which is the bony spinal element that is situated over the spinal cord region. This is termed a laminectomy and serves to decompress the areas experiencing nerve pinching. An MRI done before the surgery will show the areas being pinched and where to focus the surgical efforts. There may be some additional findings during surgery, but taking a "we'll see what's going on when I get in there" approach is not the best.
The bone taken out is saved and then milled down and usually an additional substance is added to it. On the outside of the spine on each side, this bony material, called bone graft, is placed and the remaining bony areas on the spine are "roughed up" to encourage bony healing and hence a bony fusion. The spinal fusion will weld one level to another so that movement will no longer occur.
In many cases, screws and rods are placed in the vertebrae to stop movement between the affected levels. This hardware keeps the levels firmly in place while the bony fusion takes place. So basically you have the spinal decompression portion to free up pinched nerves and then the spinal stabilization part to prevent further slipping or instability.

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