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Normal anatomy |
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| The spine is made of bones (vertebrae) separated by soft cushions (intervertebral discs). |
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Review Date: 07/09/01 Reviewed By: A.D.A.M. Medical Illustration Team |
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Indications |
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Lumbar (lower back) spine disease is usually caused by herniated intervertebral discs, abnormal growth of bony processes on the vertebral bodies (osteophytes), which compress spinal nerves, trauma, and narrowing (stenosis) of the spinal column around the spinal cord. Symptoms of lumbar spine problems include:
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Review Date: 07/09/01 Reviewed By: A.D.A.M. Medical Illustration Team |
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Incision |
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| The surgery is done while the patient is deep asleep and pain-free (general anesthesia). An incision is made over the lower back, in the midline. |
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Review Date: 07/09/01 Reviewed By: A.D.A.M. Medical Illustration Team |
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Procedure |
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| The bone that curves around and covers the spinal cord (lamina) is removed (laminectomy) and the tissue that is causing pressure on the nerve or spinal cord is removed. The hole through which the nerve passes can be enlarged to prevent further pressure on the nerve. Sometimes, a piece of bone (bone graft) or metal rods (such as Harrington rods) may be used to strengthen the area of surgery. |
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Review Date: 07/09/01 Reviewed By: A.D.A.M. Medical Illustration Team |