Neither of these conditions should be ignored if indeed she has them. I would definitely seek a second opinion. Even if her knees are asymptomatic, it does not mean they don't need to be repaired. Puppies especially can be very affected by LP...it can cause their bones to not grow correctly.
Here is an article about LP that was written by a board certified surgeon that YHR uses:
http://www.yorkiehavenrescue.com/patellarluxation.html