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Stem Cell Research

Will stem cell therapy replace Tommy John surgery for baseball players? Angels pitchers may find out

Will stem cell therapy replace Tommy John surgery for baseball players? Angels pitchers may find out

Twice now, doctors have performed an ultrasound on Andrew Heaney’s arm, squirting on a gel, twisting it around, taking pictures, and then showing him the images on a screen. 

He doesn’t entirely understand what he sees, but it’s enough to inspire hope in the 25-year-old Angels pitcher.

The ulnar collateral ligament in his left arm, which tore and abruptly ended his season after one appearance, looks like it is healing. To what extent is yet to be determined.

Heaney experienced pain near his elbow during an April 5 start against the Chicago Cubs, but no one knows precisely when the fibrous tissue actually ripped. At first, the Angels prescribed...

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