Medial Branch Blocks and Facet Joint Injections What Is It?Facet joints are small joints at the back of the spine that provide stability and help guide motion. They are found in the neck (cervical), upper back (thoracic) and lower back (lumbar). They can become painful as a result of arthritis, injury or mechanical stress. Facet … Continue reading Medial Branch Blocks and Facet Joint Injections