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ZILRETTA for Knee Arthritis

When you have knee arthritis, it can be difficult to do every day activities like walking, going up and down stairs, and playing sports. At Ross Medical Group, our goal is to get you back on your feet so you can get back to doing the activities that you enjoy. If you have a diagnosis of knee arthritis and have not yet found a helpful therapy, ZILRETTA injections may be for you. Our Sports Medicine specialist, David A. Ross MD, has been specially trained to administer this injection into the knee joint.


ZILRETTA (triamcinolone acetonide extended-release injectable suspension) is an extended-release corticosteroid injection approved by the FDA to manage osteoarthritis knee pain. ZILRETTA is the first and only FDA-approved treatment for osteoarthritis knee pain that uses extended-release microsphere technology, studied in multiple clinical trials on hundreds of patients. ZILRETTA microspheres slowly and continuously release medicine into your knee for about 3 months.

What’s so special about these microspheres?

They’re tiny particles that are so small, they cannot be seen by the eye. They contain a medicine called “triamcinolone acetonide,” which helps reduce pain and inflammation caused by osteoarthritis. Once injected directly into the knee, the microspheres stay put, slowly and continually releasing their medicine for about 3 months.

Staying power

ZILRETTA microspheres stay right in your knee joint—right where the pain is. After releasing all their medicine into the knee joint, the microspheres break down and turn into carbon dioxide and water, which are naturally found in the body.

How can I get ZILRETTA?

Most local insurance carriers including Medicare cover ZILRETTA.  Our office can verify if your insurance will cover this procedure and advise you in advance what your financial responsibility will be for the procedure. Please call our office at 305-279-7677 or visit our website at  and schedule a consultation with Dr. David A. Ross, Sports Medicine.

To learn more about Zilretta, please visit:

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