Hey, Marcia, I understand what you're saying because I had a knee replacement in 2013 and it seemed to improve....but only for awhile. I went back for follow-ups with the orthopedic surgeon and he said it was intact. Then I took that same x-ray to another ortho surgeon who said otherwise. He scheduled me for surgery and removed the one that was done by the previous surgeon and when he talked to my daughter while I was in the recovery room, he told her the original replacement "fell apart" in his hands. It might be worth taking your most recent x-ray to another surgeon for a second opinion. My knee does bother me from time to time but not near like it did before. Take care and best wishes.
Maryann