I am so sorry that you are going through a hard time, I'm not sure what to tell you. If she is at the age where she may pass away by old age soon anyway, then I would say it might be best to put her down and then she won't go through any suffering, but if you see that Amelia still has a very large happy will to live, then I would do the surgery! Whatever your decision is we will respect you very much for helping your little Amelia. Please update us on what you decide and if Amelia is doing ok.