My post about my friend was anectdotal as were the posts of the others who had stories about family members. It's curious that you didn't jump on them for not being neurosurgeons. I didn't claim any sort of medical knowledge on the the topic. So, you STFU.
My friend is 49 years old and still plays ball although not professionally. I'll bet he could still outrun you. The dude can fly. Are you a professional athlete? The last time I looked that is not a requirement for offering an opinion on this forum. So, again, STFU.
I know what I learned from my friend and from the doctor that my brother consulted who showed us a film on the procedure. I hope that is enough of a basis to post a comment about the outcome of my friend's procedure. Again, STFU.
Tom, I think it is time to demonstrate that you know something and start adding some information to this forum. Otherwise, get lost.