What a Neurologist Should Know about Functional Anatomy for Botulinum Toxin Injections in the Head, Face, and Neck: A Practical Perspective

Abstract

Since botulinum toxin (BoNT) was approved by the US Food and Drug Administration as a prophylactic treatment for chronic migraines in 2010, subsequent studies have shown that BoNT is effective in the management of chronic migraines due to its pain-relieving effects. Therefore, neurologists are increasingly utilizing BoNT as a therapeutic tool for chronic migraine. It is crucial to thoroughly understand the functional anatomy in the head, face, and neck regions to successfully administer BoNT injections in these areas. This review describes the complexity of muscles and their associated target nerves in the frontal, temporal, and occipital areas and serves as a resource for essential functional anatomy, with the goal of providing clinicians with a practical perspective on utilizing BoNT injections.