I promised to update everyone on the second opinion we got about removing Lucky's stump.  The vet said he did not feel he was in pain and that surgery would be elective.  I'm not sure I agree with him that Lucky is not in pain.  Every time I pick him up and I touch his stump he cries - Loudly!!  We have decided to put off any surgery until January when he will be 6 almost 7 months old.  I may talk with the first vet who said it should be amputated.  So much is going on in my life right now (I have severe back pain that I've been dealing with the last 3-4 weeks, hence why it's taken so long to do this update) but back to Lucky.  He keeps hurting his stump and then rolls around on the floor crying, trying to bring the stump up into his body as far as it goes.  I wish this was a clear cut case of knowing what should be done.  I'm so overwhelmed thinking about it.