It's very rare for a minor injury to become seriously infected to the extent that the patient's immune system can't fight it off. Even before the discovery of a

It's very rare for a minor injury to become seriously infected to the extent that the patient's immune system can't fight it off. Even before the discovery of antibiotics, amputation was typically only used as a salvage therapy in cases of gangrene. They didn't reach for the bone saw just because you had a serious infection.