Cauda equina syndrome is caused by any large space-occupying mass, such as a large central HNP, located in the spinal canal at the level of the cauda equina. The cauda equina is the lumbar and ...

HNP generally has an acute onset often without ... Lumbar spinal stenosis (LSS) is the narrowing of the central canal and, often, the lateral recess due to facet joint hypertrophy, thickening ...