This injection procedure is performed to relieve pain caused by arthritis in the sacroiliac joint where the spine and hip bone meet. The steroid medication can reduce swelling and inflammation in the joint.
The medication injected into the joint can be a local anesthetic, such as lidocaine or bupivacaine, and may also include an anti-inflammatory medication, such as a corticosteroid. If the local anesthetic provides immediate pain relief, it diagnoses the sacroiliac joint as the source of the patient’s pain. The anti-inflammatory steroid may relieve pain in the sacroiliac joint over a longer period of time, possibly for weeks or months, allowing the patient to pursue physical therapy.
It is typically done with the patient lying on the stomach and usually done under x-ray. The skin in the back is cleaned with antiseptic solution and then the skin may be numbed with local anesthetic. The injection needle is then placed under X-ray guidance. Once in place, the injection is carried out. After the injection, the needle is removed and a Band Aid is applied. Immediately after the sacroiliac injection, you may feel that your pain may be gone or quite less. This is due to the local anesthetic injected. This will last only for a few hours. Your pain may return and you may have soreness at the injection site for a day or two. This is due to the mechanical process of needle insertion as well as initial irritation from the steroid itself. You should start noticing pain relief in a few days.