Our dog, Peg, was born missing a front paw. Hopping is all she has ever known, and she got around really well, but when you're a Golden Retriever, that much weight and strain on one front limb takes its toll. We had to find some way to help her as she, at 6 years old, has arthritis in her front ankle and when she overdoes it she can't put her front paw on the ground at all. We ordered a prosthetic for her and while I was concerned that she would have difficulty adjusting to walking, she has done great. We had to first get her to trust weight on the artificial limb, but once she figured that out, her natural instinct took over and she was good to go.
We got the prosthetic in the estimated time frame and when we felt it needed a slight adjustment we were able to ship it back and get it returned quickly. I do wish there was more community support and suggestions for things on how to teach the dog to walk and go up and down stairs, how to make sure the prosthetic is a good fit, and how to make sure the limb isn't too tight or too loose.
Overall, I'm very happy with it. Peg can go on longer walks without getting overly tired or sore and it takes strain away from her good leg as well which is very important.