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EPIDURAL STEROID INJECTIONS:
An epidural steroid injection is basically a "cortisone shot" for the spine. It can be used to treat herniated discs and painful "pinched" or inflamed nerve roots (causing sciatica or radiculopathy). Epidural injections are generally recommended when oral medications and physical therapy have not been effective at reducing pain. Fluoroscopy (low power X-ray) is used for safety and to verify appropriate needle placement. See Patient Education section for further details.
FACET JOINT INJECTIONS:
A facet joint injection is a "cortisone shot" into a joint in the spine. It can be used to treat arthritis or inflammation of the facet joints. There is a right and left facet joint at each level of the spine. These joint can become painful in the same ways that knee, hip, shoulder, or finger joints do. When medication and physical therapy is not effective, steroid injections may reduce pain and inflammation in these joints. It is often very difficult to determine if a particular joint is painful based only on MRI and physical exam, so facet injections also serve as diagnostic procedures to help identify where the pain is coming from. If there is no pain relief at all, the joint(s) injected can be ruled out as possible sources of pain. See Patient Education section for further details.
MEDIAL BRANCH BLOCK (MBB) INJECTIONS:
Medial branch block injections are a diagnostic procedure used to help diagnose the source of neck or back pain. The medial branch nerves of the spine are tiny nerves whose primary function is to allow sensation from the facet joints. There is a right and left facet joint at each level of the spine. These joints can become painful in the same ways that knee, hip, shoulder, or finger joints do. It is often very difficult to determine if a particular joint is painful based only on MRI and physical exam, so medial branch blocks (and sometimes facet joint injections) serve as diagnostic procedures to help identify where the pain is coming from. The procedure "blocks" (with local anesthetic) your ability to feel any sensation coming from whichever joint is targeted. This is not meant to cure the problem. It is only a diagnostic test to identify the source of the pain. You must pay careful attention to how you feel after the injection. A positive response occurs when your pain disappears for the expected length of time (which is different for different anesthetics). Once the painful joint or joints is/are identified, a procedure called radiofrequency ablation (RFA) or radiofrequency neurotomy may be used to achieve long lasting pain relief. See Patient Education section for further details.
RADIOFREQUENCY NEUROTOMY:
Radiofrequency ablation is a procedure used to treat painful joints (facet joints or Z-joints) in the spine as well as sacroiliac joints. During the procedure, a special insulated needle is placed along the medial branch nerves. These are the nerves that carry pain signals from a painful joint. The tip of the needle heats up and coagulates or burns the nerve. This blocks the pain signal, so you can longer feel the joint which was causing the pain. These nerves do not have any other important functions, so it is safe to burn them. They will usually grow back again within one to two years, though, so the procedure may need to be repeated. It can be repeated as many times as is necessary. This procedure should only be done if facet joint injections or medial branch block injections have identified a painful joint which is not improving with more conservative treatments. See Patient Education section for further details.
SACROILIAC JOINT INJECTIONS:
A sacroiliac joint injection is a "cortisone shot" for the sacroiliac joint. The sacroiliac joints are two joints (right and left) which connect the lower spine or coccyx to the pelvis. These joints do not move much, but they can become inflamed and painful, especially after trauma. The only way to determine if a sacroiliac joint is causing pain is to fill the joint with anesthetic and see if the pain disappears. If the joint is inflamed, the anti-inflammatory steroid (the "cortisone") can provide long term pain relief. If the injection is effective, but does not last long, radiofrequency neurotomy can be performed to provide longer lasting pain relief. See Patient Education section for further details.

