Bone Scans

Have you ever had a bone scan? Well, I haven't either but I am going to have one tomorrow. It is to check out my knee replacement and see if any of the parts have loosened for one reason or another. My knee has acted rather funny at times and is 14 years old now and sometimes gives me pain. However, they are supposed to last a lifetime. But if they do work loose, they have to replace them and it is quite a surgery so I hope it has not worked loose in any way. It takes about 3 hours in all to get it done and part of the time, you can go shopping while the dye circulates through your body. I think it will also be interesting.