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 > Dr. Lawrence Dorr, M.D., Medical Director of Dorr Arthritis Institute at Good Samaritan Hospital in Los Angeles, California performs a robotic hip replacement surgery on Joy, 54. ShareTweet