Hello again,
@kreismama .
I'm sorry you've had to come back to us with increased pain and stiffness.
It sounds to me as if your surgeon is being very thorough in investigating your knee problem.
You've had a knee X-ray, which appears normal, so loosening of your hardware seems unlikely.
There are no definite indications of infection, either.
Have you had blood tests, to see if you are allergic to any of the metals in your prosthesis? The blood test is most accurate and you can get the test done in the USA by ordering the test kit from
https://www.orthopedicanalysis.com/testing/order-testing-panel . You want the Orthopedic Panel Test 2. Once you get the test kit, your GP (or any lab) can do the blood draw and send it in for testing.
Unfortunately, insurance doesn't usually cover the cost of this test, but it's still well worth getting it done.
I'm not at all convinced that you have adhesions causing the stiffness. To me, its more likely that the early and painful PT set up a chronic inflammation in your soft tissues.
Are you still dong PT or exercises? So long after surgery, you shouldn't need to. You should just be using your knee normally in your daily life.
Your symptoms to me sound as if they could be caused by inflammation of your tendons.
However, I think it would now be a good idea to look for a second opinion, from a surgeon who specializes in problem knees and who is not associated in any way, either professional or social, with your current surgeon. By doing that, you will get a completely independent opinion, not influenced by your current surgeon's opinion. Sometimes these surgeons, looking at your knee with new eyes, can discover a problem and a solution that has escaped your original surgeon.