Medically reviewed by Brigid Dwyer, MD The lumbosacral joint, also called L5-S1, is a term used to describe a part of the spine. L5-S1 is the exact spot where the lumbar spine ends and the sacral ...

The sacrum is the base of a person’s spine. It consists of five vertebrae that fuse to form one bone. These bones, known as S1–S5, fuse together during adolescence.

A lumbosacral spine X-ray, or lumbar spine X-ray, is an imaging test that helps your doctor view the anatomy of your lower back. The lumbar spine is made up of five vertebral bones. The sacrum is ...

Sacral massages have been reported to relieve a variety of conditions. The gentle massage manipulates the spine in an attempt to realign the nervous system. ‌ It has been used in attempts to ...

This video discusses indications, reviews relevant anatomy, and demonstrates techniques for epidural glucocorticoid injection for lumbosacral radicular pain.

An Overview of Functional Anatomy Posteriorly, the bony arch encircles the spinal canal (Fig 1). It is composed of transverse processes, facet joints, two pedicles, two laminae, and a spinous process.

MRI of the lumbo-sacral spine demonstrated an enlargement of the conus medullaris with high T2 signal intramedullary lesion. It showed also large intradural serpentine vessels.

In this MNT Knowledge Center article, learn about sacral dimples. These are natural clefts that appear at the base of the spine and are not normally serious but can complicate later on in life.

The pelvis forms the base of the spine as well as the socket of the hip joint. The pelvic bones include the hip bones, sacrum, and coccyx. The hip bones are composed of three sets of bones that ...

Spinal Anatomy Center Feature Articles and Video and Animation Directory from SpineUniverse provides patient and healthcare professional education, providing clear, straightforward information on ...