Sacroiliac steroid injection can be used diagnostically or therapeutically. There are no prospective a controlled trials to support this procedure. Most support comes from case reports or case series. Case series are unreliable evidence due to the variable natural history of back pain, the presence of factors that can influence outcome and mislead the investigators, and the potential for a placebo effect. In general, the literature regarding injection therapy on joints in the back is of poor quality. The current evidence on sacroiliac joint arthrography and injections is insufficient to consider it medically appropriate.
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