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Cathy Wurzer

Platelet Rich Plasma treatment scientifically unproven

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Gov. Mark Dayton is at the Mayo Clinic in Rochester today to get treatment for an ailing hip muscle. The therapy he'll undergo is growing in popularity -- especially among athletes -- but there isn't much science to back up its effectiveness. The procedure is called Platelet Rich Plasma Injection -- or PRP. A lot of professional athletes including Tiger Woods, Raphael Nadal and Alex Rodriguez have used PRP to treat muscle ailments. It's allowed in professional sports because the primary ingredient is the player's own blood.

MPR's Cathy Wurzer spoke with Dr. Bradley Nelson, an orthopedic surgeon who teaches at the University of Minnesota Medical School, to find out more about Platelet Rich Plasma Injection.