Thank you for trying to explain what happened. So, when did you have teh Girdlestone procedure, and which hip is it?
I'm not sure what sort of surgery clodaghcove had, but I think a lot does depend on the length of femur that you have left. The surgeons at Mayo will have more idea about that and I think your best course of action is to talk to them about it.
This is only my personal opinion, but since you are now free of pain and infection seems to be controlled, even though you have to take multiple antibiotics, I would be inclined to leave things as they are for now, rather than going for any more surgery and running the risk of possibly stirring up infection again.