I like everyone else always in search of finding ways to help my tkr recovery….I am over 7 weeks out first round of therapy did not help range of motion..,, when they told me just continue at home and I was only 65 and could not straighten my leg I thought I don’t think so…,. So I started water therapy and mfr I have been doing 3 weeks now my leg almost at 0 the bend still work in progress ..,. But I continue to look for answers …. I found interesting article about using tens unit in acl and tkr patients ….so yesterday I placed tens around my knee I wore for 8 hours so much easier to walk I did not have pain with ever step, exercise was less painful . I walked around store able to bend my knee with each step was nice …. I have done without tens i had pain with every step….I read the whole article makes so much sense for my case anyway so I will let you all know how it works. Hopefully in few weeks I will get my bend back here is the link if you want to read https://thebarbellphysio.com/case-study-quadriceps-inhibition-and-tens-post-knee-surgery/……this tkr recovery is a process for some of us and there is a lot of different methods out there I will keep trying because does not hurt to try