Risks and Side Effects
SI joint injections are generally considered safe for most patients. Potential risks include allergic reactions and numbness. Some discomfort may be experienced after the injection around the injection site, but it’s usually temporary.
Sacroiliac (SI) joint injections are sometimes used to determine if a patient is a candidate for certain procedures, such as a radio-frequency nerve ablation. For therapeutic purposes, the injections may provide enough relief to allow patients to benefit from physical therapy and other conservative treatments without distracting pain. Results may last for several months or up to a year. If effective, injections may be safely repeated up to three times per year.