Had the same problem with my 10 month old pup last wk, did not break anything but hit the nail hard. Decided to get the dewclaws off on both front legs, vets were good. They said it was a straightforward enough operation, 10 min job under anesetic. He had the op last wednesday and the cuts are healing up good! Really glad that i went for it thats the last of it now! It cost £100 + vat. I would get it done!