Spine Procedures
Ganglion Impar Block

Ganglion Impar Block

This procedure helps to reduce pain in the pelvic region through a simple steroid injection.


Ganglion Impar Block

A ganglion impar block is a procedure used to reduce pain and discomfort of chronic pelvic or rectal pain by blocking nerve impulses, while also assisting in the diagnosis of the pain. The ganglion impar is a structure located at the level of the coccyx, and receives pain signals from several areas in the lower region of the torso.

Once a local anesthetic is applied using a small needle, the minimally invasive AccuCision® Spine procedure begins with the doctor using a special x-ray machine to guide a needle into the correct location. Once the correct location is confirmed through injection of a contrast dye, the doctor injects a mixture of steroid medication and anesthetic. Following the injection, the needle is removed and the injection site is covered with a band-aid.

The patient’s reaction to the injection greatly helps the doctor to diagnose the cause of pain. If no pain relief is experienced, then the pain is not coming from the nerves at the injection site. If the pain goes away but returns a few hours later, then the pain may be coming from the nerves, but the steroid injection did not help at that location. If the pain goes away but returns later that day, then continually recedes in the next few days, then the injection was successful and can be repeated to relieve pain in the future. The steroid medication typically takes two or three days to have an effect and peaks in about two weeks.

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