Help Ruby get her surgery

I have just found out that my girl Ruby needs surgery on her cruciate ligament. Unfortunately due to personal circumstances at the moment I am unable to pay for the surgery which will cost $3800. 
The condition she has will not fix itself unfortunately and the longer it is left, the more chance she has of the situation getting worse and causing long term damage to her leg, possibly even her other leg. 

I am asking for help to raise the funds for her surgery. 
Every little bit will help. I don't like having to ask for help or ask people for money, but in this instance I feel I have no choice. Ruby means a lot to me and it saddens me to watch her in pain.