I cringe when I read what you have experienced. As arthrofibrosis set into my new knee quite quickly, I too experienced some of your journey and I questioned why I went through the surgery. A MUA has helped, and it’s only been over 6 months now, so it remains to be seen how it will turn out.
Every day I have to start slow. Stretches in bed upon arising, Ibuprofen, extra strength Tylenol, upright stationary bike warm up, then all the exercises I learned in PT. Then daily walks. It never feels to the point I don’t remember it’s a replacement. Hope it does one day. Going down stairs is awful still. Difficult to get off the floor or ground- how would I ever be able to do knee #2? I’d be so limited.

I really thought it would be much smoother. I was extremely active, healthy ( aside from arthritis) and preemptively did PT to strengthen.

I truly believe the stats are not realistic, and the surveys sent to patients to measure their recovery blow over many important details of real recovery.

Anxiously awaiting the testing ability for arthrofibrosis as well. Best wishes.