God apparrently does not do restorations of amputations, but allows his saints to do the job:
Sts. Cosmas and Damian died ca. 287
Arab twin brothers and Christian martyrs who practiced faith healing back in the third century A.D. One of their most famous miracles was transplanting the black leg of a dead Ethiopian man onto a white man whose leg was severely ulcerated.
according to legend they stayed true to their faith, enduring being hung on a cross, stoned and shot by arrows and finally suffered execution by beheading. (Which is ironic, as you would have thought that they could have grown new heads or at least God would have inspired someone to do what the saints had done.)
From Wiki http://en.wikipedia.org/wiki/Saints_Cosmas_and_Damian
What are said to be their skulls are venerated in the convent of the Clares in Madrid, where they have been since 1581, the gift of Maria, daughter of Emperor Charles V. [...]
Other skulls said to be theirs have been discovered at Easter 1334 by Burchard Grelle, Prince-Archbishop of Bremen. He "personally 'miraculously' retrieved the relics of the holy physicians Cosmas and Damian, which were allegedly immured and forgotten in the quire of the Bremen Cathedral.
At least since 1413, another pair of skulls is stored in St Stephens's Cathedral in Vienna.
Who'd have thought that at a time when nothing was known of the way the body worked, the blood circulated - see picture, no blood anywhere - or the immune system - let alone basic hygiene - see picture - that a pair of twins could join one leg to another without stitching?
What I want to know is, what happened to the Ethiopian when he got to heaven? Did he have the spirit of the white leg transplanted on to his missing one?