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Hello, this is Dr. David. I am reviewing your question now and will be with you momentarily.
I am sorry you had gangrene infection and lost your foot below the knee
this comes from lack of circulation and death of tissue in the leg from lack of circulation
if your circulation to your leg stump is ok, you should not get gangrene infection and death of tissue again
a doppler ultrasound can check the leg for circulation
let me know if you have questions.
what other questions do you have?