Thanks ELizabeth! Luckily it isn't bad enough to require surgery yet (but if it gets there I will do it younger) it just seems like every once in awhile they bother him and only after high activity like long walks or a lot of jumping (that I attempt to stop). I was just noticing the other day he was limping and wondering if there was anything I coud do to help him ease the pain.
I'm glad to hear it worked for Gracie, I have never known anyone who had it done so that is very good news