I am so sorry to hear of your situation. I, too, had an infection in my TKR. Mine began with a high fever about a month after the TKR, then puss/seeping a day later. I had an antibiotic wash (2x in one surgery-OS washed out, then had the whole team leave & scrub again before returning to be sure no one was carrying anything) and spacer replaced. Nine days in hospital/rehab, picc line + oral antibiotics and after the staples came out my knee began seeping again. My OS suggested a third surgery may be needed to put in an antibiotic spacer.
We prayed and prayed the meds would go to the infected area. A month later I had clean bandages and was allowed to start bending again ( was in an Imbolizer to keep from bending). But my body revolted against the antibiotics and quit making white cells, so I had to have the picc line pulled and oral stopped after 6 weeks. Now I'm on a low dose of doxycycline and riding a bike or swimming everyday.