AP/February 20, 2014

BOSTON (AP) The family of a teenager who almost lost a leg in the Boston Marathon bombings has started a fund to explore limb regeneration and the use of stem cells to regrow bones and skin.

Gillian Renys parents started the fund with an undisclosed sum and have formed a team for this years marathon to raise more. The goal is $3 million to fund research intended to help others at risk of amputation.

Reny, as well her parents Audrey Epstein Reny and Steven Reny, havent spoken publicly about their ordeal, but are coming forward now in interviews with The Boston Globe and WCVB-TV to talk about the Gillian Reny Stepping Strong Fund.

Both of Renys legs were injured in the April blast, and doctors were not sure they could save her mangled lower right leg.

I knew from seeing the destruction of my legs that something very serious had happened, Reny said.

Reny was standing near the finish line with her parents to watch her sister complete the race when twin bombs detonated, killing three people and injuring more than 260 others.

Reny, now a 19-year-old freshman at the University of Pennsylvania, is still rehabilitating but is able to walk on her own after undergoing several surgeries.

Initially, doctors did not know if Renys leg could be saved, said plastic surgeon Dr. Eric Halvorson.

But Halvorson found that a vital nerve was undamaged, and tests showed that major blood vessels were largely intact. Reny spent several weeks at Brigham & Womens Hospital and within two months recovered enough to attend her graduation from Buckingham Brown & Nichols School on crutches.

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Family of wounded teen marathon victim starts fund