Hi. The surgery that John is having sounds a lot like what my dad had done last year.My dad was 71 when he had it done. At his age it was a scary thing! He is doing fine now. It was a long recovery for him. And very painful but he is glad that he had it done! And I am sending good thoughts to you and John when he has his done. Hoping for a speedy recovery for him too! Take care! (((HUGS))) to you all.