Hello @ hbaudouin , I had a similar problem. Unfortunately orthopaedic surgeons are not the greatest listeners. Though I totally respect them for the high degree of skill they have. Just think of the anatomy of the area and having to navigate through it. Anyway i had a TKR 1 year ago. I was told I would I would have 85 percent recovery in three months. Things were going well for the first three months and then it was down hill from there. At nine months I had been reduced to using a cane and very limited walking. In the end I had say to the surgeon, please take me seriously or refer me to another surgeon.. I respect him for jumping into action. Examining me thoroughly and coming to the conclusion that there was a defect in the manufactured prosthesis under the patellar. I trust his abilities .Within a month I was in for surgery ; it was found the plate was loose. . It was causing inflammation and effusion, My quadriceps had wasted . Two weeks after surgery I can say there is marked improvement but still swollen and painful. I have chosen to back off physio for a bit. In a months time I start in a rehab programme tailored for people who have had knee revision. I don’t know if this is the right thing to do. .Anyway I am lucky I have a surgeon who is skilled and I trust. I just needed to amp up my assertiveness to get the situation taken seriously. As a side note read the book “How Doctors Think” . It is very interesting and gives the reader the realization that many doctors don’t listen well and there are many reasons for this including the way insurance structure dictates time spent with patients. But you can break the barrier down by pointing out that you think you are not being listened to. When I finally got my point across. my surgeon did not get defensive at all . He was very professional. He jumped into action. My knee cap was replaced . During surgery he tried a number of sizes and made sure it was tracking well.I have no idea how long my recovery will take but I am going slow and easy. I see him in a month. If the situation has not improved , this time I think he will be timely in his reassessment. Unfortunately no surgery is guaranteed . Things happen and it is awful when it happens to you. I wish us both well.