Herniated nucleus pulposus (HNP), also referred to as a herniated disc, is a common spine pathology that occurs approximately 95% of the time at the L4-L5 or L5-S1 level (Fisher et al., ...

allowing the inner nucleus pulposus material to leak out." This is what a herniated disc is, and the pain and impeded movement associated with one is caused by this rupture changing the shape or ...

A ruptured disk, sometimes called a herniated or slipped disk, happens when the inner part of the disk, the nucleus pulposus, ...

Lumbar herniated nucleus pulposus (HNP) and lumbar spinal stenosis (LSS) are common spine pathologies with different clinical presentations and interventions. HNP generally has an acute onset ...