This updated and expanded edition is packed with the knowledge about lameness Dr. Rooney has accumulated since he wrote the first edition in 1974. He explains the function and mechanics of the front and hind legs, and discusses what happens when things go wrong. He covers fractures, injuries to tendons and ligaments, muscles, the nervous system and much more. Dr. Rooney discusses the causes of lameness, how to diagnose every condition and the state-of-the-art methods of treatment.The book is full of illustrations and actual X-rays to help you understand what went wrong and what to do about it. Also featured are sections on gait analysis, biomechanics, and the horse's response to training to help you avoid problems.