He gave up skiing at eight years old. Too boring. That detail tells you something about Emanuel Perathoner before anything else does. The Italian snowboarder who stood on top of a Paralympic podium in Cortina on March 8, gold medal around his neck, crowd roaring in his home Dolomites, has always needed more than just speed. He needs the chaos around it. Snowboard cross gives him that. Six riders launching from the same gate, jostling through banked turns and jumps, everyone trying to survive and accelerate at the same time. It is not a lonely discipline. It suits him exactly. What it took to get him there, however, was a different kind of test entirely. Emanuel Perathoner stood on top of a Paralympic podium in Cortina on March 8, gold medal around his neck. (CREDIT: Remi Vallat/OIS) The Knee That Changed Everything In 2021, Perathoner attempted a jump called a double, clearing two rollers in sequence. He landed short. His tibial plateau, the flat surface at the top of the shinbone that forms the base …