This video is unavailable because we were unable to load a message from our sponsors. If you are using ad-blocking software, please disable it and reload the page. Embed Code Restart Playing WATCH MORE VIDEOS FROM THIS EPISODE > Craig has lived with knee pain for over 25 years. Orthopedic surgeon Dr. Mark Adickes examines Craig’s knee to find the source of his chronic pain. Plus, E.R. physician explains the common signs that a knee surgery may be necessary. ShareTweet