osteoarthritis
"I had the Synvisc one injection in my left knee 4 weeks ago.   The injection was painful and I had worse knee pain than before for 3 1/2 weeks.  I have had little to no pain for 4 days now.  I am hopeful to receive 5-6 months of pain free living.  If so I will most likely have a repeat injection as my next option is knee replacement."