Why does Oscar Pistorious a blade runner?

Answer 1

He was the first amputee to ever run in the Games. Pistorius was, as his website says, born "without the fibula, the long, slender bone running along the outside of the leg from below the knee joint and down to the ankle, in each of his legs. His parents, Henk and Sheila, consulted with some of the leading doctors in the world before making the heart-wrenching decision to have his legs amputated below the knee by South African orthopedic surgeon Dr Gerry Versveld." .