29 August 2008 15:47

I have owned my 20-year-old rescue pony for four years. I recently found him lame in the field – he was very stiff in both front legs and could hardly walk. The vet gave him bute for four days and he improved. Once the bute stopped he went very lame again. He would stumble but, although walking was slow and difficult, he could still put some weight on his front feet. The vet checked his feet and legs but could find no pain, heat or swelling anywhere. He diagnosed arthritis in the shoulder. Can arthritis occur so suddenly? My pony is in otherwise great condition, is a healthy weight and his coat is glossy. He gets a small handful of feed every day with a mineral and vitamin supplement.