Left Knee replaced 6/15/18, PT every day and no progress, 7/12/18 aspiration revealed staph infection, 7/13/18 debridement to wash out infection, 7/14/18 started two weeks of daily antibiotic IVs, 8/19/18 MUA since I could not get past 90' bend, no change after MUA, continued with PT until Medicare coverage expired, still no improvement in bending. Swelling, pain, and immobility continue. Fired my doctor. Trying to get well on my own, but still very little progress. Good Luck.