I'm a little over 7 weeks TKA and still can't peddle on a stationary bike even with the seat raised up as high as I can reach.

I just sit on the bike and roll the pedal back and forth for the last 2 weeks and not seeing any progress, my PT thinks I'm not trying hard enuff but it hurts like crazy when i push it!

same with using the EZ mend slider...same pain!
My bend is only at 90-95 at best and I posted here awhile back that my Dr. has suggested manipulation if I could not improve to 110-120 in 3 weeks!