Fluoroscopy-guided sacroiliac joint injections

The authors performed fluoroscopy-guided sacroiliac (SI) joint injections. With the patient prone and the x-ray tube perpendicular to the fluoroscopic table, the skin was marked over the distal 1 cm of the SI joint. With the tube angled 20 degrees-25 degrees cephalad, a 22-gauge needle was inserted at the skin mark and advanced perpendicular to the fluoroscopic table towar d the posterior joint. Nonionic contrast material was injected to confirm t he intraarticular position of the needle. Of 31 SI joint injections, 30 (97 %) were intraarticular. Mean procedure time was 108 seconds. This technique is safe, rapid, and reproducible.