osteoarthritis
"I had a knee replacement on the right knee.  In the three months since I had the replacement my left knee was worse the Dr. suggested a knee replacement for the left but I couldn't as the right replacement did not go to plan and I have a bent knee for life.  I came across the Synvisc and asked the Dr about it.  he said that he has not heard of anyone that it has worked on,  I went ahead and ordered it and had him inject the left knee it was good for about 4 weeks and then the pain came back with a vengence.  It cost me over $400 it was money not worth spending.  They say you should get up to 6 months mine was maybe one moth."