> In the US, a hospital would be stupid to make an app like this. Why would you want less foot amputations?

My Uncle died a few years ago when a tree fell on him while working in his back yard. While trying to stabilize him, a doctor put in a request to have a surgeon amputate his leg to prevent complications once he was stabilized. My uncle died that day, and a day later a surgeon and anesthesiologist came to amputate his leg. When he wasn't found in his hospital room, they went down to the morgue, amputated his leg there, and billed the insurance company for the procedure... including the cost of anesthetizing the dead man.

Ridiculous stories like this abound in the American system of healthcare.