I have to scoot all the way back in the tub, make a fist with my right hand so as to avoid the spot that still hurts with pressure, then put both hands on the back ledge against the wall and push up. I use my left leg to stand, as my right one won't cooperate. Last night as I was getting out of the tub, I had the thought that I need one of those old people's tubs with the doors...lol. Getting older and having body parts not function well really sucks.
Personally, IMHO, it doesn't matter what "hubby" wants you to use, what matters is what you are comfortable with and what works for you along with what your OS wants you to use. My husband kept telling me I "should" be on such and such number when using the CPM machine-I told him many times I was on numbers where I was comfortable, and him saying I "should push myself a lot more" was not helpful nor correct, so I finally told him to butt out. He has never had a TKR, so his advice is not only useless, it was also wrong and unwanted. It seems to me that most men want to fix everything, including us. (On a humorous aside-he kept telling me he had the Time-Life book of home surgery and could fix my knee if I'd let him) Anyway, knee advice from your OS and this site is useful; from hubby it's generally not, unless he's been there. I'd tell him you need his support, but you'll do what works best for you.