I had a broken ankle and foot during my recovery. It happened just short of my knee mark and on the same foot as the tkr. My knee reacted badly because I couldn't walk on that foot at all. My knee wanted to walk, but I couldn't. Of course, it didn't help that I fell directly on the knee itself, too! I was icing foot, ankle and knee for weeks! Once I got back to walking some, the knee recovered some, though it's still not as good as it was before my fall. Once you get walking correctly from your broken foot, your knee will recover nicely.