sending vet stem, a lab in san diego. >> they extract the stem cells from the fat, depending on the condition of the dog, the age of the dog, getting between 18 and 32 stem cells. >> reporter: the stem cells were overnighted back to the vet's office. >> i injected the stem cells into here. >> reporter: where the doctor injected them into bear's hips. >> hard part for the owner is waiting four to six months for the stem cells to kick in and do their business. >> the progress has been absolutely awesome. he's gone from just being a couch potato on his orthopedic bed to being fully active again. it is just a joy to see. >> reporter: barely a year after surgery, bear is a changed dog. >> the joy of seeing him be comfortable and being able to do so many of the things he could do, is just -- you can't put a price on that >> reporter: russ spencer, fox