Medically reviewed by Jennifer Steinhoff, MDThe lumbar spine includes the five vertebrae in your lower back numbered L1 to L5 ...

A lumbar puncture is a test to check the fluid that circulates around the brain and spinal cord. This is called the cerebrospinal fluid or CSF. A lumbar puncture can check for cancer cells or for ...

Lumbar herniated nucleus pulposus (HNP) and lumbar spinal stenosis (LSS ... A brief overview of lumbar functional anatomy is presented.