Medical branch block is an injection of a local anaesthetic near the medial branch nerves to temporarily block the pain signal carried from the facet joints of the spine to the brain. It is used to assist your physician in diagnosing the cause of your back pain.
The sacroiliac joint connects the lowest part of the spine, the sacrum, to the adjoining bones of the pelvis, the iliac bones, that are present on either side of the sacrum. In an adult, there is minimal movement at these joints. However, in a female, they play an important role during delivery where they relax and increase the flexibility of the pelvis.
The hypogastric plexus is a bundle of nerves present near the distal end of the spinal cord. The nerves transfer pain impulses from the organs around the pelvic region, such as the bladder, rectum, descending colon, perineum, uterus, vagina, vulva, prostate, testes and penis.
Sympathetic nerves, located in the lower spine, control basic functions such as regulating blood flow. They also carry pain signals from tissues to the spinal cord. Lumbar sympathetic block is an injection containing a local anesthetic and steroid, which is injected into or around the sympathetic nerves to block the transmission of pain impulses from the legs or lower back, thereby relieving pain.
A greater occipital nerve block involves injecting medication around the greater occipital nerve to relieve pain. The greater occipital nerve travels through the muscles at the back of the head and into the scalp providing sensation to the back and top of the scalp.
The stellate ganglion is a set of nerves located at the last two vertebrae of the neck which supply the face and arm. Trauma, injury or infection to these nerves can cause pain. A stellate ganglion block is an injection containing local anesthesia and a steroid, which blocks pain signals from reaching the brain. The injection can be used for the following: