Help for Cody's surgery expenses

My dog, Cody, needs surgery for his dislocated kneecap (patellar luxation, grade 3). This incident happened when he was running around my backyard and suddenly ran into big tree roots. He started to cry and limp immediately. He can still not put any weight on his back leg. It is essential to do surgery ASAP since degenerative changes will make surgery very difficult in the future. The surgery is a huge unexpected cost that I'm determined to cover.

He is the sweetest and most playful dog anyone could ask for. I would love to see him go back to normal. If you would like to help, it would be apprectiated, and as always, I will be grateful.

Thank You.