Aww, what a sweet thing you did for Peg-Leg. She (hopefully) is lucky to have you otherwise she would have died without your help. I can honestly say that I think you are awesome for cutting off the leg. She looks like she is doing fine. I know if I had to be in your position I would have done the same thing. I had to perform Bumblefoot surgery on 2 chickens last year. It was kinda of overwhelming the at time, had to repeat it again and it seems like it didn't bother me as bad the 2nd time around. I commend you for loving the baby so much to do what you did.
Good Luck and best wishes to Peg-Leg
Good Luck and best wishes to Peg-Leg