Fig. 3: Anatomy of GB 27. Callison, M. Sports Medicine Acupuncture textbook. AcuSport Education. 2019
Let’s return to the neural anatomy and look at a very useful application.
For over two decades, Matt Callison has been using GB 27, a crossing point of the dai mai, to treat the psoas major. The intention of his needle technique is to stimulate one of the nerves of the lumbar plexus that passes through this region with the goal of reflexively stimulating the psoas major which, not only houses these nerves, but is also innervated itself by the lumbar plexus.
There are specific patient sensations that come from this technique that guide its success. Generally, this technique excels at stimulating an inhibited psoas, but it can also be used for an overactive psoas.
In Sports Medicine Acupuncture classes, however, we teach a more advanced, direct technique for the psoas (entering through the back) that is more appropriate in the majority of cases, but the details of this technique need to be carefully explained and demonstrated before someone attempts it.
This is just one application related to understanding this fascinating neuro-myo-fascial anatomy, and there are many more fascinating things about this muscle that we will be covering in an upcoming webinar—“The Psoas: Structure, Function and Treatment”—on January 15th.
In this class, we will look at the psoas major and its role in spinal stabilization and balance, its channel relationships, and its role in many lumbar and hip pain patterns. This 3-hour class will be a great ‘deep dive’ into this intriguing myofascial structure.