A very reputable Maltese show breeder explained to us on another forum that one year is the general cut off for determining if luxating patellas are genetic or caused by injury.
When you got her at five months, did your vet check her knees? If they were clear then, she most likely got them from trauma (jumping on and off furniture).
Did you ask - and see proof or speak to her vet- if her parents knees were cleared before breeding? |