Sacroiliac Joint Injection
The sacroiliac joints, or SI joints, exist on both sides of the lower back, joining the spine to the
pelvis. These joints are susceptible to injury, either by chronic stress or acute injury. This type
of pain may occur with other spine problems and the diagnosis of sacroiliac arthropathy is
frequently overlooked. The joint is injected with local anesthetic and steroid under X-ray
guidance. Typically, this is a difficult joint to inject and requires precision needle placement
and confirmation of correct placement by documentation of appropriate contrast spread.
Injections may be repeated multiple times to effect long-term relief. Best results occur when the
injections are performed in coordination with physical therapy.