Praise God!!
And hugs to your dog sitter.
I didn’t know this happened to you, so glad you made it through the surgery and your arm is put back together.
An engineer family member was afraid I would fall down the stairs going from my second floor to the first floor and I lived alone so he wanted to fix it so it was less likely I would fall.
He bought white handholds like you see in bathrooms (got them at Lowes), and installed them on the wall going down the stairs; there are seven of them - they are solidly on the wall and look nice. I hold onto each handhold, moving from one to the other, as I come down the stairs.
You might think of doing this to give you more stability going down stairs.
Marcella