Gunu - We had our TKR on the same day. I found the quad strengthening exercises are so valuable, as that ( and some other tendons, etc. that are moved during surgery) need to refind themselves. Pressing your knee down on a rolled towel (not too thick) is good, and not too difficult. I was asked to do 30, holding down for 5 seconds, and do it 4 or 5 times a day. Also, roll the towel thinker, place it under your knee, and press your quads etc. tight, then try to lift your leg straight using the knee as a hinge. If that's hard, it's probably not time to be doing lunges (I'm not there yet) or squats. I was told the first 6 weeks are all about building range of motion and some strength. The next weeks are more about walking, stairs, etc. I'm starting with that tomorrow at PT. And - ice is awesome!