So sorry to hear of your loss.
We just put down our 11 year old Rottie about a month ago after a battle with bone cancer. She was diagnosed on Valentine's Day this year, we amputated her right front leg and she was great for 7 months until another tumor showed up on her spine and she lost control of her bladder and bowels and couldn't walk anymore.
Her name was Heidi and she was a Therapy Dog certified through St Hubert's and the Delta Society. We miss her every day, best dog we ever had.