The surgeon is the best judge. Sometimes the decision has to be taken on the operating table as the extent of ulcer or infection is not visible from outside to the naked eye. So a probable forefoot amputation could end up as a below knee amputation
on the operating table. The surgeons try their best to preserve as much as possible.
After surgery, if the patient walks, the pressure increases on the other foot and chances of it developing an ulcer increases if proper offloading with appropriate footwear is not done.
If the blood vessels of foot are involved in diabetes
, there also is involvement of heart vessels. So her heart would not be as strong as others of her age.
If the diabetes, BP, septicemia
are controlled and the amputation procedure goes on well with proper footwear advice thereafter, she should do well.
Wish her best luck.