I had a debridement arthroscopy 10 months ago - helped but not completely as OS discovered two lesions - bone on bone. Classic overuse. I had a round of Euflexxa injections (not rooster combs like Synvisc, but engineered bacteria) in February and they kicked in three weeks after the last injection, but as of a few days ago, it seems to be wearing off and I am just short of a panic. How often can one receive these injections...I was under the impression that it is every six months. If that's the case, I think that I'm sunk and will have to consider ACI although the recovery sounds time consuming and challenging...anyone else in this boat? I got the injections as I was becoming too dependent on ibuprofen with only mediocre results. Yikes, this is daunting!