is a condition characterized by the thickening of the ligamentum flavum, a ligament in the spine that can contribute to lumbar spinal stenosis (LSS). LSS is a narrowing of the spinal canal that ...

Lumbar spinal stenosis (LSS) is the narrowing of the central canal and, often, the lateral recess due to facet joint hypertrophy, thickening and bulging of the ligamentum flavum, bulging of an ...