Chronic pain is the most common cause of long-term disability. It lasts longer than "normal healing" (several months), and can cause severe problems.
Medial Branch Block (Cervical)
This is an injection of numbing medicine that bathes the medial branch nerves. These nerves are attached to the facet joints of the spine. Disease or injury of these joints can cause pain in the medial branch nerves. This pain may travel through the neck, shoulders, upper back and head. A medial branch block can help your physician find the source of your pain. It may also provide temporary pain relief.