Sacroiliac Joint Injections
What are Sacroiliac Joint Injections ?
A sacroiliac (SI) joint injection—also called a sacroiliac joint block—is primarily used either to diagnose or treat low back pain and/or sciatica symptoms associated with sacroiliac joint dysfunction.
what conditions can ankle injections help with?
how does it work?
- Your vitals (e.g. pulse rate and blood pressure) are monitored throughout the procedure.
- Depending on the physician and your preference, an intravenous line may be inserted to deliver medication to help the patient relax.
- To maintain sterility, the skin overlying the sacroiliac joint injection is cleansed using an iodine based solution (e.g. Povidine-Iodine) or an alcohol-based antiseptic (e.g. chlorhexidine 0.5% in 70% alcohol). Sterile gloves are used throughout the entire injection procedure.
- For your comfort, the needle insertion site is numbed using local anesthetic. Once the needle enters the sacroiliac joint under fluoroscopy guidance, contrast – ‘dye’ that shows up under X-ray – is injected to verify needle placement within the sacroiliac joint and to verify spread of solution within the joint.
- Once the needle has been guided into the joint successfully, diagnostic and/or therapeutic medications are injected into the joint.
- Two types of medications are typically injected:
- A local anesthetic (usually lidocaine or bupivacaine) is typically injected into the joint with the goal of determining immediate pain relief to confirm the sacroiliac joint as the source of the patient’s pain. This solution is used for a diagnostic sacroiliac joint injection.
- An anti-inflammatory medication (usually a corticosteroid) may help reduce inflammation within the joint, which in turn could help alleviate the pain over a longer period of time (typically for several months, up to a year). This solution is injected for a therapeutic sacroiliac joint injection.
Possible Risks of Sacroiliac Joint Injection
Risks related to this procedure tend to be relatively minor and occur infrequently. Typical risks include:
- Risks related to the medications used in the injection, such as a possible allergic reaction to a medication.
- Bruising and/or soreness at the injection site.
- Infection at the injection site, deeper tissues, or in the joint.
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