Medial branch blocks involve the injection of a local anesthetic agent to diagnose low back pain from facet joints. The injection can also serve as a prognostic tool before radiofrequency ablation.

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 ...

It is not common for pain to get worse after a medial branch block (MBB). However ... Alternatively, the injection may not have targeted the right location. During an MBB, a surgeon has to ...

Diagnostic blocks ... the medial branch nerves that innervate the facet joints. Although potentially of higher predictive value for success of denervation therapy than intra-articular injections ...