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Spine & Orthopaedic Consultants

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Sacroiliac Joint Injection

Sacroiliac joint injections are performed for diagnostic and therapeutic intentions for lower back pain associated with sacroiliac (SI) joint dysfunction and auto injuries.

The sacroiliac joint is located between the sacrum (bottom of the spine) and the pelvis (hip).

Sacroiliac joint pain maybe difficult to diagnosis due to lack of accurate imaging study, physical examination, as well as similarity to pain caused by disc herniation and lumbar spinal nerve compression.

The sacroiliac joint is the cause of your low back pain if dramatic reduction of pain is derived after deposition of local anesthetic into the joint itself. Sacroiliac Joint Injury is common after auto accidents as a result of pressure from the seat belt during impact.


After an initial consultation with Dr. Chowdhury and your questions answered satisfactorily, you will be escorted to a procedure suite and positioned prone on the fluoroscopic table. The target site is cleansed with antiseptic solution. The skin over the injection site is numbed with a local anesthetic. A thin needle is then inserted into the sacroiliac joint under X-ray guidance. Once needle placement is confirmed, a combination of a long-lasting steroid and a local anesthetic (bupivicaine) are deposited. The whole process takes approximately 15-20 minutes with the actual procedure taking between 2-3 minutes.

Post Procedure:

Patients are able to leave the clinic upon completion of the procedure. Be aware of potential numbness and weakness of your leg(s) and avoid strenuous activities over the next 24 hours. Application of ice and oral intake of mild analgesics usually will alleviate potential soreness over the injection site although flair-ups are possible. Potential side effects from steroid administration may include transient flushing, restlessness and elevation of blood sugar. You should follow up with your referring physician’s office in 10 to 14 days, unless instructed otherwise, and report overall treatment response. There are no consensus in the medical community regarding the frequency of sacroiliac joint injections, the most prudent recommendation suggests evaluation of each and every injection prior to further treatments are planned.