Very sad news Trace.
I am dreading the day it happens to my Golden Retriever Cassie.
She is 14/15 yrs old now, and her back legs have started to give way when she walks

Sad sad day it will be

My sympathy is with you xx
Paul
Murphy is on Metacam for his dodgy back legs - get Cassie to the vets, the Metacam has done wonders for him.
I went to bed last night in tears, fearing the worst as there really wasn't much improvement yesterday, got up this morning to be greeted by a bright eyed bushy waggy tailed dog who is still a little wobbly on his legs, but MUCH improved from when I left him last night. He'd eaten his food and willingly took his tablets off me.
Them upstairs seem to have decided to let me keep him a little longer, and I'm grateful. I now know he won't see the year out, and I'm going to have to face it, but by the looks of things not just yet.
Thanks everyone for your support.