Lumbar spinal stenosis is a narrowing of the central canal of the lumbar spine (low back). The central canal is where the spinal cord and spinal roots live and narrowing in this region can cause pain along with numbness and tingling in the low back, buttocks, and legs. Lumbar spinal stenosis can also cause neurogenic claudication which presents as intense cramping in the calf after short periods of activity.
The causes of lumbar spinal stenosis are many, including enlargement of the ligament in the back portion of the spinal canal called the ligamentum flavum. This excess ligament tissue is safely and carefully removed during the MILD procedure.