Jenny, didnt notice you had moved your earlier post and replied there. I dont know if my post will show here or only there so just wanted to let you know I had posted a response

My vet shaved the area yesterday and really manipulated it good to feel for any hidden staples. I had removed 3 staples that the surgeon has missed. His hair is growing inside of the hole so we are going to try to keep that trimmed down to while this continues to drain.

Figured it would be our luck that one would be buried in there. He is reactive to suture lines and some metals. We only discovered the cancer because I twisted the arm of my favorite otho surgeon (he's done 6 acl surgeies on my pack). I told him I wanted all remaining hardware (which was some wire and a pin- the rest came out on it's own 2 weeks after being put in) removed from that knee in hopes of finding the cause of continued lamenesss. He didn't feel the hardware was causing a problem but I knew something was not right. He biopsied the knee joint and asked me if I even wanted him to send it in- I said of course. None of us, doctors included, ever suspected cancer.

So life goes on :)  He's always been an extremely slow healer so we will just continue to keep an eye on this.