Having only found out last week about my Charlie having SM., I know just what you are feeling. Im so, so sorry. I must say, I am very pleased with Charlies reaction to the Gabapentin hes on.All the licking & chewing etc have stopped & hes very bright & seems to be without pain. I would not go down the route of surgery but the difference is my dog is 7yrs next month & yours is only baby,we each have to do what we feel is right for our particular dog, I feel. I shall be thinking of you when he has his op. Be brave for him . Lots of good wishes.