Dog arthritis in the knees is frequently caused by injuries or car accidents. Learn more about the causes of knee arthritis indogs with tips from a veterinary technician in this free dog care video. Expert: Dawn Smith Contact: www.traditionalchinesetherapy.com Bio: Dawn Smith has been a traditional Chinese herbal medicine practitioner for six years and a registered veterinary technician over 20 years. Filmmaker: Christian Munoz-Donoso