I want to point something out, even though I am NO expert in these matters, I have read and heard, from several sources, that dwarf afflicted animals and particularly these Miniatures, may indeed have internal deformities or shortcomings that make them poor candidates for intense surgeries where general anesthesia is an issue.
I am not sure if their vets have considered the whole picture in this girl's case, as I didn't see it mentioned on her webpage that she is, indeed, a dwarf, but that's what I see in her overall conformation, sadly.
Specific issues I have heard repetitively is airway and nasal deformities which aren't readily apparent from the outside, but become clear on specific testing and/or postmortem exams. These may make it difficult for her to handle a surgery, I would suspect, though again they would want to consult their veterinarians (and their veterinarians may need to look around for more research themselves as it's fairly breed-specific (dwarfism) before they made a big choice like this.
It is apparent to me that they want to do the best thing for her health and well-being and it looks to me as though she is quite full of both at this point. She may degenerate, but they are fighting an uphill battle from my observation, and they may only be able to do so much.
Cute little girl, it's easy to see her personality and love. I hope this isn't taken the wrong way (my post), just trying to help them see more of the possibilities before they make their choices, so they have all the cards in front of them that they possibly can, since so much is out of our hands anyway.
Best wishes,
Liz M.