Hi my husband had right hip replaced in March 2014 and left hip replaced on January 2015 and rods with screws in his back. He was doing very good. Everybody said they could not even tell he had his hips replaced. In August of this year he said he had some pain in his left hip, he was due for a follow up here in December anyway. I called ortho and made an appointment. They took a xray and wanted to do a hip asparation and put a steroid in the tenion to see if that would help. We went back a week later for the test results and his levels were so high to which the Dr new he had a infection and said he wanted to do surgery the next day. So Oct 26th he had the replacement hip removed and a spacer put in. He is now non weight bearing on left leg for 3 months and iv antibiotics (Vancomycin ) for 6 wks then the new is to be put back in. But how do they know if the infection is gone? And I'm worried because the Dr said no weight at all on left leg and he lost his balance and stepped down on his left foot twice this morning, will this create a problem with the spacer?