laminectomy

Laminectomy is a type of surgery in which a surgeon removes part or all of the vertebral bone (lamina). This helps  relieve compression of the spinal cord or the nerve roots that may be caused by injury, herniated disk, spinal stenosis, or tumors. A laminectomy is considered only after medical treatments have proven to be ineffective. 

Low back pain can range from mild, dull, annoying pain, to persistent, severe, and disabling pain. Pain in the lower back can restrict your ability to move and function. Laminectomy may be done to relieve pressure on the spinal nerves, treat a disk problem, or remove a tumor from the spine. 

One common reason for having a laminectomy is a herniated disk in the spine.

Laminectomy is usually done for back pain that continues after medical treatment, or when the back pain is accompanied by symptoms of nerve damage, such as numbness or weakness in the legs.