My 5 year old Cavalier just ran really fast into the garden to bark at a cat magpie on the fence. He came to an abrupt halt and yelped loudly. He came back into the house dragging his right hind leg slightly. He seems slightly better now, but is still hobbling a bit. Obviously if it doesn't improve he'll be going to the vets, but can anyone suggest what he might have done? This has never happened before and he's my first dog. Thanks
Was Luxating patella here too (Labrador). First time knee cap popped out was similar, suddenly lots of yelping until it popped back in then a limp for a while, until next time, then started happening daily until he had an op to fix.