What is a Facet Joint Injection?

A facet joint injection is a procedure that identifies the source of irritation in the small joints at each segment of the spine. These joints provide stability and help guide motion. A cervical (neck), thoracic (upper back) or lumbar (lower back) facet joint injection involves injecting a steroid (anti-inflammatory) medication, which can anesthetize (numb) the facet joints and block the pain.