I had a total knee replacement in 2003 and was diagnosed in 2006 with Sarcoidosis. I need to know if and how sarc can affect the artificial joint and surrounding tissue. I have tried to google it but have not found anything. I also have a thumb joint that is very sore most of the time. It is not very swollen and only I know it's sore, so now I wonder is it in my joints, even my spine. I am not sure where to start to find out the answers to my questions. I have a shoulder, spine and arm pain and I am waiting on a doc appointment with a bone doc, but he doesn't do backs. So if there is something going on in the spine, I must go somewhere else. the cleveland Clinic told me to do my follow ups here and with the new pain, and it would be like a last resort to come up there. So now what do I do?