I was wondering the same thing myself, as my knees have been hurting real bad, I think its suppose to lubricate the joints in the knee?
Joan did you ever get these injections and have they helped, I think my primary has got this drug and can administer it to me, and she is alot cheaper than a specialist.
The pain has been so bad I have been considering steriod injections in both kneees, and that would mean back to an orthopedic surgeon, I know a good one, but money is so tight right now.
I beleive my knee surgeries actually worsened my knees, altho they dont come out of socket any more, they hurt terribley, especially going up and down stairs, and we have stairs I cant avoid them
I have fallen quiet a few times in the last month and a half alone, usallly I fall up the stairs, but couple of weeks ago I fell down the stairs and landed on my elblow(ouch!) . and the times I fell up the stairs i have usally had something in both hands like glasses with liquid in them and I couldnt catch myself, and the glasses and liquid go flying everywhere, Thank God they didnt break. So I try to be real careful going up and down the stairs , remembering to hold the hand rail.
Anyway if you got your shots let us know how they went, thanks....