Dan Lasko is a former Marine who worked with Northwell Health’s 3D printing experts and two Long Island-based firms to solve a life-altering impediment for the wounded warrior. Mr. Lasko, 33, lost his left leg below the knee in 2004 as a result of an IED attack while serving in Afghanistan. An avid triathlete, Mr. Lasko struggled to transition to and from the water – until he met researcher Todd Goldstein, PhD, the director of Northwell Ventures’ 3D Printing Laboratory. Health Story explains the journey behind the resulting "Fin" prosthetic.