The lamina is the portion of bone that make up vertrabra in the spine. A laminectomy is surgery to take out the lamina to relieve pressure off the spinal cord or spinal nerves. It creates room in the spinal canal so spinal nerves can move more freely. It is also done to remove spinal bone spurs or damaged discs and bones. This surgery is sometimes done to alleviate numbness, weakness and pain and heaviness in the legs and buttocks. These symptoms are more prevalent when walking or standing. These symptoms can also sometimes cause problems emptying or controlling the bowel and bladder.

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