Tell me about your MUA.. Good or Not Good..

Been suggested I get an MUA. Don’t really want to. Six months post Right TKR. 7/31/25. ROM is about 105-110. Hard to bend going downstairs. Hard to bend from beginning because of nerve pain. Somewhat less intense now.. unless knee has inflammation and swelling. Seems to be connected to the nerve pain. I also have RA. Anyone have an MUA while dealing with that? Had left TKR done 4/3/25. Still stiff.. no nerve pain.. can go downstairs no problem. ROM maybe slightly better than right. Need encouragement either way. Do it.. or don’t. I can walk fine. Right hurts sometimes when I bend.. but just suck it up. I’m a 69 year old Grammy.. I could probably deal with this the rest of my days.. but then I wonder if I don’t get the MUA.. could it have helped. I’m being scared it will make the nerve pain worse again. Plus 6 more weeks of PT. I can sleep fine at night.. finally. Thanks