Facet joints are located between each set of vertebrae in the spine from the neck to the tailbone. These joints allow each vertebra to move against the vertebra just above and below it. If the facet joints become painfully irritated or inflamed, a facet joint injection is used to reduce the inflammation and swelling of tissue in and around the facet joint space, and may relieve pain and other symptoms related to the condition. Many people may think of facet joint pain as primarily spine pain, but some patients may have pain in the surrounding tissues and even into arms or legs.
Facet Joint Injections (also known as Facet Joint Blocks) are both a treatment and a diagnostic tool. If the facet injection relieves pain, there are further treatments available to provide longer lasting pain relief, such as radiofrequency ablation.