Have any of you had the Synvic injections for knee arthritis? How did it work for you?

 I had arthroscopic surgery in Sept, and my knee is no better than before the surgery.......I start the injections next week....I'm really hoping they help as that is my last option except for a replacement which they tell me I'm too young for (I'm 55), but I'm not looking forward to several years of this knee pain!

Denise