Noel treats nine-month-old cockapoo Betsy, whose owners Sophie and Dan are concerned about a dragging front paw caused by nerve damage, to see if there are surgical options. But when Betsy develops gangrene, she has to have her paw amputated, and in order to salvage the rest of her limb, Noel must replace her amputated foot with a skeletally-anchored implant called a PerFiTS (Percutaneous Fixation to the Skeleton)