A medial branch block is an injection of a strong local anesthetic on the medial branch nerves that supply the facet joints. The facet joints, also known as the zygapophysial joints, are part of the ...

To reiterate, according to the AMA, when reporting medial branch blocks, if a physician states he intends to inject three medial branch nerves and he injects the L3, L4 and L5 medial branch nerves, we ...