I must admit, this is the 1st time participating in an APP /group like this. This is my 3rd full knee replacement. Two on 1 knee and the latest on the other knee just a few weeks ago. I have reviewed the classroom material for Pre Op, Module 1, and Module 2 multiple times. I also downloaded the PhysiApp to chart my progress as well. The ease of using TKR (Total Knee Rehab) along with the presentation and explanation by Dr Dan has been great. I have learned so many new things along with the continued reinforcement of things I should be doing. Dr Dan comments on building strength prior to surgery, preparing your house, how to use portable devices, using ICE, etc is right to the point and very helpful in my preparation before and after surgery. On to comments on module 1 & 2 . Well done Dr Dan. I cannot emphasize how this has help me.