Many doctors and athletes use stem cell therapy to treat sports injuries, such as Achilles tendinopathy or damaged knee ligaments.

Some physicians use stem cells to repair damaged knee cartilage.Read Knee Cartilage Repair, Regeneration, and Replacement

While increasing in popularity, stem cell therapy is not considered standard practice by sports medicine doctors and not covered by most insurance companies. Patients considering paying out-of-pocket are advised to learn about stem cells potentialand limitationsfor treating sports injuries.

See Treating Acute Sports and Exercise Injuries in the First 24 to 72 Hours

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Doctors use stem cells to treat a wide variety of sports injuries, including damage to:

These injuries may be due to a one-time trauma or chronic overuse.

Stem cells can be applied to an injured area via:

See Regenerative Medicine for Sports Injuries

When administering injections, many physicians use ultrasound or other medical imaging to ensure cells are delivered precisely to the site of damaged tissue.

See Types of Regenerative Medicine for Sports Injuries

Stem cells are different than skin cells, muscle cells, liver cells, or any other human cells. What makes stem cells special is that they can:

Many physicians who use stem cell therapy hypothesize that, when placed into a certain environment, stem cells can transform to meet a certain need. For example, stem cells that are placed near damaged Achilles tendon are hypothesized to develop into healthy Achilles tendon cells.

In almost all cases, the stem cells used in sports medicine come from the patient. Clinical use of fetal or embryonic stem cells is banned in United States.

The process of collecting stem cells is often called harvesting. Physicians usually harvest stem cells from the patients fat, blood, or bone marrow.

Before a bone marrow aspiration, a patient is given a local anesthetic and may also be given a sedative.

Mesenchymal stem cellsAll three types of stem cells listed aboveadipose (fat), peripheral blood, and bone marrowbelong to a category of stem cells called mesenchymal stem cells. These stem cells, sometimes called adult stem cells, can be obtained from the patients own body and are being increasingly used for treating sports injuries.

See What Are Stem Cells? on Arthritis-health.com to learn more.

Right now, there are no formal medical guidelines regarding who can receive stem cell therapy for sports injuries. Whether or not to use stem cells for treatment is up to patients and their doctors. A lack of standardization further complicates the nature of treatment at one clinic versus another.

See Who Is a Candidate for Platelet-Rich Plasma Therapy?

Some doctors have certain criteria for recommending stem cell therapy. For example, they only recommend it to patients who are healthy and younger (e.g. under 50). Other doctors make recommendations on a case-by-case basis.

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Stem Cell Therapy for Sports Injuries