Good morning @4russcoll Thanks for bringing those eruptions after TKR to my attention. I am 3 months out and I had those bumpy things the first week or so after the actual surgery. They looked like bites and were a bit hard when I felt them. Then they became itchy and now they are gone. So, I alerted both my surgeon and my dermatologist. I don't think they have figured out this mystery yet. And the mystery was that this break-out allergy of some type was only on the surgery leg and only above the knee.

If you learn anything please let me know. I am giving up on finding an answer right now. Everything else is going super well.

May you have patience and ease.
Chris