Sacroiliac Joint injections are a type of back pain injection of cortisone and long lasting local anaesthetic (6 hours) into the joint capsule, that gives relief from pain stemming from and arthritic or inflamed Sacroiliac Joint by delivering anti-inflammatory medication into the affected area.  The procedure is performed under local anaesthetic, a spinal needle is inserted into position under the guidance of the CT scanner.  Once in the correct position, the cortisone and anaesthetic is injected into the appropriate joint capsule to reduce your symptoms. 

It is recommended that you have someone drive you home following the injection. 

The duration of pain relief is unpredictable.  There may be relief for only a few hours or a day or sometimes for months.  You will be given a self-assessment pain relief sheet to take home with you to document your degree of pain relief.  You need to take this with you to your referring doctor at your next appointment.



In recommending a CT guided joint injection, the doctor believes the benefits to you from having this procedure exceed the risks involved. 

Common Risks and Complications Include:

  • Bleeding and/or bruising may occur. This is more common if you take blood thinners.
  • Increase in pain in the area of injection due to aggravation of the muscle by the insertion of the needle. It is usually mild and temporary.
  • Failure of the local anaesthetic, which may require a further injection of local anaesthetic. 

Rare Risks and Complications Include:

  • Infection, requiring antibiotics and further treatment.
  • Damage to surrounding structures such as blood vessels, organs and muscles, requiring further treatment.
  • An allergy to injected drugs, requiring further treatment
  • Steroid flare, which causes an increase in pain symptoms for 24-48 hours post procedure.  Painkillers and best rest are advised.