Hope all is going well with you following your MUA. I purchased a regular stationary bike two days prior to my TKR, but will be returning it for a recumbant this weekend. I have been using it at home but am using a recumbant bike at P.T. and find I like it much better. My P.T. did say that a recumbant would be better for therapy following TKR. Either would be fine though.
I tried them both when I started therapy. The recumbent is much more gentle on the uh, rear end.
But, I get a better workout and can drive down harder with a regular bike. I get off every five mins to lower the sear, and stretch the leg.
I use the regular one at PT. If I buy one it will be recumbant because it looks easier to get on and stay on. At PT I tell them that I could do an hour as opposed to minutes if the seat were more comfortable. My butt quits before my knees.