I did have a surgery to take care of a complication from my Total Knee Replacement. It was not actually a revision but it did correct a terrible problem that was the result of my TKR surgery. I had horrible pain after my knee replacement and I saw three orthopedists but after an MRI and x-rays none could figure out the problem. The pain was so bad in my knee that when I pulled myself up from my bed without the use of my knee I put so much stress on my spine that I actually fractured my l3 vertebrae. After 17 months of horrible pain and very sleepless nights I went to a wonderful orthopedist who took my complaints seriously. He ordered an ultrasound hoping that it would give him a clue as to the cause of my awful pain and it did. What I had was a very rare extra bone in my knee called a Fabella bone. Up until about 100 years ago this bone was extinct in humans but in recent years it has been making a comeback. I had the surgery and instantly the awful pain was gone.
If you have a serious issue it is always a good idea to get another opinion.