My Maggie has this in both front legs - but she was a rescue and I only found out about it after we brought her home and she had her first vet check. Our vet said some dogs need the surgery, and some dont - it really depends on your dog and their level of pain/discomfort. Maggie is 4 and doesnt show any problems, but I expect there will be a day when we need to fix it in one or both knees. I am sure someone with more knowledge on the topic will be able to help you, but I will say this, my vet told me the surgery averages about $1200 per knee...so I would be weary of a vet who does it for $350. You might call and ask the vet you plan to use once you bring your new pup home.
