Re: 13 year-old Shih Tzu With Recent Cushing's Diagnosis
Hi Julie,
I know very little about this other than when Crys was young her doc was always checking for what she called "knuckling" - she would take Crys' back feet, turn the toes so they were on the floor instead of the pads, and see if and how long it took Crys to put the foot right. They did this because of all her skeletal abnormalities to keep an eye on nerve damage that might occur...at least that is what they told me when I asked why they kept doing that. Then, that summer Squirt's pin came out of her knee, she would drag that foot from time to time upside down simply because it hurt too badly to put it right but she wasn't putting much weight on it either. Brick has one foot he drags a bit - the nails never quite clear the floor so he has a distinct gait and is easy to locate when he's on a hard surface. He does this as a result of the hydrocephalus...along with other oddities, but it sure doesn't slow him down!
I can tell the days the pressure is greater than others based on his gait as well as other indicators. So, there are three who drug or drag a foot yet had no neurological issues that have taken their time away.
Brick has neurological issues, but he's 13 going on 14 and just as happy as a lark, full of life and love. 
You seem to understand what other implications this might, MIGHT, have so I won't go there.
Just wanted you to know there are other reasons this could be happening and they could mean nothing. 
I am with you in trying to prepare myself for that day - and I'm not doing a very good job of it at all. The very idea literally takes my breath and clinches my gut into knots. I draw from the courage of so many here in the hopes some of that will be accessible when needed. Also like you, I do my best to make each day one of happy memories for us both, cherishing every wag, every bark, every grin.
Hugs,
Leslie and the gang
"May you know that absence is full of tender presence and that nothing is ever lost or forgotten." John O'Donahue, "Eternal Echoes"
Death is not a changing of worlds as most imagine, as much as the walls of this world infinitely expanding.