One of our 6 year old 'sprocollie' (springer/cocker/collie cross) - I made the name up myself and we didn't go out to get a sprocollie, they are just lovable mutts - has developed a weight bearing issue on his right front leg.
When he stands now he has his left foreleg more in the centre-line to take the weight off his right foreleg. When walking and trotting he limps, but is perfectly free at canter/faster. There is no heat/swelling, no joint deformation, no split pads/torn nails, sore toes, no pain withdrawal with anything I can think of to provoke it. He doesn't yelp, wince or anything. Took him to the vet and they had a look at his front paw, clipped out some matted hair between the toes and basically said there didn't seem to be anything wrong and to just keep an eye on things.
We've given him rest and restricted walks, but this doesn't seem to make any difference. When he moves he will always try and canter, even very slowly, as it seems he is avoiding walking and trotting gaits.
He is fine in himself, eating fine, sleeping well, bright and otherwise happy.
Any thoughts?