I have a mini pony that has a deformed back hoof from birth. In the past couple months it started growing weird and she started walk in on a most the side of her hoof. No matter how I trimmed it I couldn' get it right so I had my farrier trim her on Saturday. He is corrective shoer and has dealt with this same thing before. He trimmed her and she started walking in her hoof correctly right away. Last night I noticed that when she walked she either swung that leg ( back leg) really wide and it didn't bend at the hock or she kind of drug it behind her. I called the farrier and he said that since she is walking on her hoof correctly now her leg is probably really sore and she is just babying it. There isn't any heat, a welling, or tenderness and no way she could have injured her leg. She will bear weight on the foot while standing. But then I lift up he leg she will not bend it at the hock.
Does anyone have any ideas?