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What is a rhizotomy injection?

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Quick Answer

A rhizotomy injection is a minimally invasive treatment option for pain caused by inflamed facet joints, states Mayfield Clinic. The injection contains medicine that is designed to reduce inflammation and is commonly administered in the neck or back.

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Typically, the rhizotomy injection consists of a long lasting corticosteroid, such as triamcinolone or methylprednisolone, and a numbing agent, according to Mayfield Clinic. The injection is administered either directly inside the painful facet joint or into the tissue surrounding the joint capsule. Corticosteroids are very effective when treating inflammation, and the treatment can last from several days up to several years, depending on the patient. Rhizotomy injections can sometimes be used as a diagnostic tool as well, to see if pain is indeed coming from inflamed facet joints.

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