When my father's knee got infected, they did a surgery where they cleared out the dead and infected tissue and then bathed the knee in antibiotics. Can you explain how they did that?

Clearing out dead and infected tissue from a joint is called debriding it. It's a job that must be done meticulously to ensure that no dead or infected tissue is left behind at all.

To perform a thorough debridement of the knee, even the lining inside the knee replacement must be removed so that the doctor can get underneath to be sure that all the tissue has been removed.

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