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How do hyaluronic acid injections for osteoarthritis work?

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The injection is given the same way for all types. First, the doctor cleans the area. If your knee is swollen with excess fluid, your doctor may inject a local painkiller, then insert a needle into the joint to withdraw excess fluid. With the same needle still in place, the doctor can usually inject the hyaluronic acid into the knee joint.

After an injection, you shouldn't do hard weight-bearing activity for one or two days. Otherwise, you should be able to resume normal activities.

Most insurance companies cover hyaluronic acid injections.

SOURCES:

American Academy of Family Physicians: ''Intra-articular Hyaluronic Acid Injections for Knee Osteoarthritis.''

American Academy of Orthopedic Surgeons: "Viscosupplementation Therapy for Arthritis."

Arthritis Foundation: "Study Questions Effectiveness of Viscosupplementation."

Bellamy. , April 19, 2006. Cochrane Database Systematic Reviews

Das, A; Neher, JO; and Safrenek, 2009. Journal of Family Practice,

Medscape: "VIscosupplementation in Knee OA May Not Be Worth the Risk."

Rutjes. , Aug. 7, 2012. Annals of Internal Medicine

Reviewed by David Zelman on April 22, 2019

SOURCES:

American Academy of Family Physicians: ''Intra-articular Hyaluronic Acid Injections for Knee Osteoarthritis.''

American Academy of Orthopedic Surgeons: "Viscosupplementation Therapy for Arthritis."

Arthritis Foundation: "Study Questions Effectiveness of Viscosupplementation."

Bellamy. , April 19, 2006. Cochrane Database Systematic Reviews

Das, A; Neher, JO; and Safrenek, 2009. Journal of Family Practice,

Medscape: "VIscosupplementation in Knee OA May Not Be Worth the Risk."

Rutjes. , Aug. 7, 2012. Annals of Internal Medicine

Reviewed by David Zelman on April 22, 2019

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What are side effects of hyaluronic acid injections for osteoarthritis?

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