Hi All, 
I am the happy owner of 2 adorable yorkies, Sushi and Sasha. Sushi is 9 months old and Sasha is 4 months. Sushi has luxating patellas level 3. When we found out, we called our breeder and she said she would pay for half of the surgery. We thought that was fair and very nice so we agreed. She called back months later and said that she could make a deal with us. she would give us a new puppy and wash her hands about the surgery. we wanted a new one so bad, so we agreed. so now, we have Sasha, who is healthy and has perfect patellas. 
 
Here are my questions:
1. Sasha is not in heat, but can she still get pregnant? Sushi is not spayed yet. we are having him spayed at the time of the patella surgery. we watch them like crazy but i don't know if that's really necessary...
2. I am horrified to have Sushi go in for surgery. he is a piece of my heart and i afraid of loosing him...
3.what is the breeder's responsibility when they sell you a puppy with LP? she did not have him checked by a vet...
4. Is the surgery horribly dangerous??? is it worth it??? he doesn't seem to be in pain... 
Thank you very kindly for looking at my post and for any helpful answers. I am so panicky right now...I just love my babies so so much!  
Thanks again, 
Sushi and Sasha's mommy