I can tell you what two of our Vets told us about Luxating Patellas....That they can tighten up..it is a minor flaw...its suggested that its genetic, but not proven , is a familiar problem with toy breeds and if its the bitch that has it and not severe enough grade to produce a hardship on her with the weight of a preg. breed her to a stud that doesn't have LP.... They weren't real concerned with it being a prob. I trust their advice, especially both and they are at separate clinics
