Decompression laminectomy is a surgical procedure used to relieve pressure on the spinal nerves caused by spinal stenosis, a narrowing of the spinal canal. During the procedure, the surgeon removes a portion of the lamina, which is the back part of the vertebra that covers the spinal canal. By removing this bone and any other structures that may be compressing the nerves, the surgeon creates more space within the spinal canal, reducing pressure on the nerves and alleviating symptoms such as pain, numbness, or weakness in the back and legs. Decompression laminectomy can be performed in various regions of the spine, depending on the location of the stenosis and the affected nerves.