Well just got some wonderfull news ,torn miniscus right leg three bills to fix .The lab is only six so it will be no new toys for pops this year as I have to get him back in shape.Started talking to the vet and she informs me this is hereditery and she is finding more and more sporting dogs with this problem.The surgeon she recommended just does these operations as he has a constant flow of patients.My daughter goes to a large US university that is recognized as one of the more eminent veterinary schools they have said it is not only sporting dogs but all breeds and they are saying it could be the new hip dysplasia ??? My third lab,never heard of it until now but have three guys with young dogs that have the same thing,.