The lumbar spine includes the five vertebrae in your lower back numbered L1 to L5. These bones help provide mobility and stability to your back and spinal column and are an attachment point for ...

An MRI scan revealed severe spinal canal stenosis at L3-L4 and L4-L5, as well as a herniated nucleus pulposus on the right at L5-S1 (Figs 11, 12). DC underwent a L3-L5 decompressive laminectomy ...

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 ...

Researchers assessed physiologic changes of the spine as well as the frequency of low back pain among astronauts during and after spaceflight.