I've just been sent this story of a horse with a prosthetic limb - don't know what you think but looks kind of disturbing to me... can't imagine the rest of its joints would last very long??
http://www.metro.co.uk/news/article.html?i...0&in_page_id=34
http://www.metro.co.uk/news/article.html?i...0&in_page_id=34