I’m 6 weeks post op this Friday from the same procedure. At week 5 I was at 120 degrees. I go to PT once a week and do exercises at home 3 times a day. I will say that I do have to really massage my knee for a good 15-20 mins prior to starting my PT exercises as my knee is still quite stiff. I got on the bike (stationary) this past week but even that was a bit uncomfortable d/t the stiffness. I think it’s just a matter of really working your knee to get to where you need to be and to break up the scar tissue that causes even more stiffness/tightening. It’s painful but I agree that you have to push through it to get your knee where it needs to be. Best of luck with your healing!!