You beat me to it Bev I was going to ask for pictures ;D she’s too mature for OCD in the hock but at least the vet checked for it
[quote author=kizkiznobite link=topic=12211.msg236137#msg236137 date=1218567633]
i would also be thinking muscle weakness, ligament or nerve problem
can you put up some pics mark
standing both sides and up from behind showing both legs…taken low down and a front shot square on?