I m having a lot of pain in my right leg. My knee surgeon, said I m bone on bone and will need to have a knee replacement. I ve already had a knee replacement on my left knee and was hoping not to have one or end of the night my right leg would be very swollen around the ankle and calf. After sometime with this happening, it seems the swelling didn t leave out of my leg and it became hard to bend and very painful walking. I m supposed to have the gel shot tomorrow but I have also made an appointment with my PCP, just to see if I can get a CAT scan or Ultrasound, just to rule out blood clots or vein circulation problems.