X-ray update: he has a bone cyst and damage from that in his left hock, right hock is surprisingly clean.
Vet doesn't think it has to come out as long as he's not (more) lame-ish or it grows so there's that.
He couldn't fully flex that joint for years now and generally his hind legs are crap due to his Shivering so it's difficult to say whether it really limits his movement since the entire hind end is wonky. But as always, how much is neurological, how much is joint damage, how much is both combined.
Really really want to avoid an arthroscopic surgery to remove it and the stall rest afterwards if I can.














