My right knee is bone on bone. I m working with a PT. I m in almost constant pain. Pain relievers either make me sick or really both my stomach. I m now at the place where total knee replacement has been strongly suggested. WE are currently getting ready to move. My husband is having two eye surgeries. So, if there any suggestions about alternatives. A friend suggested some king of gel injection or commonly called Chicken fat injections. What in the world is this? A figment of someone s fertile imagination? Thanks for any info. Marlys