My Kipper just had his 2nd surgery 4 days ago. He was only 9 mos old when it happened to his right knee in May 2005 and he had his 1st surgery then. Then last week his left knee went out on him. He's just too hyper sometimes and likes to run up and down the stairs too fast or jump up and down off the couch!! After the first surgery it took about 2 months until he finally started walking normally again. I was so worried about him but he healed perfectly, my vet is awesome. Now I just hope all goes as well with his 2nd surgery. He seems to be doing fine so far. He even dragged his toy over to play today but it's kind of hard for him to run and play fetch just yet, he's not used to the cast yet. But he sure is trying!!