The vet is convinced the problem is his shoeing. He has been shod for 
about a year now, always by the same farrier. I confess I don't 
really know a lot about shoeing - certainly not enough to challenge a 
farrier. Anyway, basically his toes are way too long and there is no 
support for his heals. The vet believes this is putting too much 
stress on the joints, and while this one is just the first to show 
any sign of wear, the others probably would in a few years if nothing 
was done.
So he has an appointment with their remedial farrier on Friday, and 
is going to get a course of adequan (sp?) injections into that joint 
just incase there is cartilage damage. 
I meant to ask the vet about exercise, but forgot. Obviously we need 
to take it easy, but some exercise is necessary to keep the cartilage 
healthy. The problem really is when he is turned out (limited to 
about 12hrs every other day on our yard) he seems to spend half his 
time practicing his halt-gallop-halt transitions and 180 degree 
spins. 
Oh well, fingers crossed we acted soon enough and no permanent damage 
has been done.
sue
sue.cunningham@mcc.ac.uk
http://www.tag.co.uk/snaffle/welcome.htm