luxating patellas

My vet called me today asking if I could take a sweet puppy surrendered to them. He was found on the side of the road by a couple of teenage girls, no where near houses, and taken to a shelter. The shelter saw he had bad luxating patellas and turned him over to my vet. I have several other...

Anyone with any experience with patellar luxation, please, please help! I've been getting so many different opinions from veterinarians on whether or not my chihuahua should get surgery for his patellar luxation. He's 1 year and 9 months old. He's a deerhead chihuahua. He's 11 lbs (not...