Hello
Gusteenie, I am also in Canada (BC) and am having bilateral THR on Sept 14, a few days before you.
My knees have started to bother me, particularly my right one. I hear this isn't unusual. I've been focusing on my gait to see what I'm doing and realized that I'm walking down almost the outside of my foot! Crazy. I used to land on outside of my heel and roll my foot in, always wearing down the outer heel of my shoes. It has become a lot worse now. I went to see a RMT and she found that my right IT band was really tight (and painful!) and where it joins down by my right knee it was very very sore there. She thinks it is more about my IT band than my knee, and suggested I really try and walk correctly from heel to toe without rolling my foot to the outside, as best as I can given that my hips are pretty uncomfortable. It does seem to help the knee pain.
The other point I want to mention, which I learned here on BoneSmart (and you may already know about), is that one should replace one's high wear shoes and boots, as we have worn the incorrect gait pattern in these shoes, so should replace them for post op.
Are you able to share the Canadian network you were referring too...."volunteers from Canadian based volunteer network that have been through bi-lateral replacements".
It will be nice to have a fellow bilat to share and exchange notes with

Wishing you a great weekend!