Sacroiliac Joint Injections
A sacroiliac joint (SI Joint) injection is an injection of a soothing steroid medication. Due to the numbing medicine used during this procedure, you may experience temporary pain relief afterwards that may last several hours. Once the numbing medicine wears off, however, your pain will most likely return. After 24-48 hours, the steroid medication may give long lasting pain relief which can last for weeks to months.
Either too much or too little movement in one of the SI joints can cause lower back pain and/or leg pain. An injection in the SI joint usually aims to first confirm the SI joint as the source of the pain, and also to alleviate pain.
The procedure begins with the patient lying on his or her stomach. The area around the SI joint is numbed with an injection of a local anesthetic. Using fluoroscopy dye and X-rays to assist in guiding the injection, a needle is inserted into the SI joint to deliver medicine directly to the source of pain. This will relieve swelling and pressure, and may relieve pain up to a few months.