What is a Lumbar Spine X-ray? It is a plain X-ray of the lower back, specifically of the five lumbar vertebrae that make up the lower (lumbar) spine, the sacrum and coccyx - which are the back part of ...

A lumbosacral spine X-ray is an imaging test that helps your doctor view the bones of your lower back. It uses small amounts of electromagnetic radiation to help healthcare professionals evaluate bone ...