Hi there,
Sorry your having to go though it again. Unfortunately these don't last forever and just like everything with our body they loosen over time. I'm 35 now and was told by my surgeon that I will probably need to have this redone in my 50s. They say it should last 15 years but this is not always the case.
I did so much research about fundoplication before my surgery and did not find anything saying about a gastric tube after operation, so was shocked myself to have it. I will be asking at my next appointment why i had it and is it standard, that was by far the worst part of it.
Good luck with your re-do I hope you recover well