@cathymw

I am so sorry about your situation. I would urge you to consider doing the other knee BUT with a different surgeon (assuming your health insurance situation permits).

I would think that all surgeons have a variety of sizes available in the operating theater, I know my surgeon did and from his post surgery report, he did fit me and test the size on me while doing the surgery.

You need a surgeon you can trust and you have lost trust in this one. Find one who does it minimally invasively with no routine use of a tourniquet and a modern alignment (kinematic, inverse kinematic or Functional) and, MOST IMPORTANTLY, A SURGEON WHO HAS SUCCESSFULLY DONE YOUR SURGERY AT LEAST A HUNDRED TIMES. When you find someone who does all of that, make sure that she has great hands and a great mind and your chances of a successful surgery are significantly improved.

Unfortunately, there is no absolute certainty of outcome with a total knee replacement. But doing what I have outlined should increase your chances. I did. I am 80 years old and I had no post surgical pain and I even got a bicruciate retaining implant (very rare...I got to keep my PCL and ACL). On day 21 post surgery my PT measured my ROM as 122. I give 90% of the credit to my surgeon.