The purpose of lumbar spinal stenosis surgical treatment is to relieve the compression of the nerves in the spinal canal, relieve pain, and relieve symptoms such as intermittent claudication. Restore normal work and life. Lumbar spinal stenosis is one of the common clinical diseases, mostly due to lumbar degenerative disease caused by the contents of the spinal canal, nerve compression caused by neurological dysfunction. When lumbar spinal stenosis does not compress the nerves, conservative treatments such as acupuncture, traction, physical therapy and medication can be taken. However, when the patient develops severe nerve compression symptoms such as weakness of the legs, low back and leg pain and intermittent claudication, surgical treatment is necessary. 1. Relieve pain: Surgery to remove the protruding intervertebral discs, remove the hyperplastic ligamentum flavum to enlarge the narrow spinal canal, and remove it to solve the pain caused by the pressure and irritation of the soft tissues around the lumbar vertebrae due to the proliferation of the bone cumbersome. (2) Relieve intermittent claudication: resecting the proliferated bony cumbers and joint protrusions, etc., and relieving the pressure on the nerve dural sac can eliminate the intermittent claudication symptom caused by the pressure on the dural sac. Relieve the phenomenon of back and leg pain. 3. Resume normal work and life: after lumbar spinal stenosis surgery, the symptoms of lumbar pain and intermittent claudication are relieved, and the patient can resume normal work and life. Through surgical treatment, the compression of spinal nerves within the lumbar spine can be lifted, and the removal of the