I made, designed and released 2. One in 2006 and one in 2012. I can't give you the files because they are under confidentiality contracts, but I can give you an idea. Primo aisi 316 or titanium grade 5 as base material. if you want to make a personalized and efficient prosthesis you have to have a 3D CT scan done. Model or prosthesis on the acquired point cloud, it is very, very + efficient and heals sooner.
But you must have a selective laser 3D printer for precious metals. Pulverized and sintered, you get the matrix for the model to be made in 5-axis CNC.