I'm not looking forward to this at all.
If it was me, I would not have a second MUA, especially since the first one didn’t work. It didn’t work because you didn’t have any adhesions. Whenever a procedure is recommended, you have the right to make the final choice, and decline it, if you don’t want it.
Saying no to therapy - am I allowed to?
What kind of activity have you been doing all through your recovery? What have you done in PT. Are you still going to PT? The answers to these questions are very important.
Some of us heal slower than others, and some of us have more swelling than others, and we have to accept the way our own body heals, and try really hard to let it heal in it’s own timeframe.
Getting back to regular activities, or doing too many exercises, can backfire if we are not yet healed enough to do these things. Pushing through any resulting pain can cause, or maintain, the pain, swelling and inflammation we have while our knee is healing.
This recovery takes an average of a full year, so you still have a lot of healing to do.