Consider the question. The first robot to assist in surgery was the Arthrobot, which was developed and used for the first time in Vancouver in 1983. Intimately involved were biomedical engineer, Dr. James McEwen, Geof Auchinleck, a UBC engineering physics grad, and Dr. Brian Day as well as a team of engineering students. The robot was used in an orthopaedic surgical procedure on 12 March 1984, at the UBC Hospital in Vancouver. Over 60 arthroscopic surgical procedures were performed in the first 12 months, and a 1985 National Geographic video on industrial robots, The Robotics Revolution, featured the device. Other related robotic devices developed at the same time included a surgical scrub nurse robot, which handed operative instruments on voice command, and a medical laboratory robotic arm. A YouTube video entitled Arthrobot illustrates some of these in operation.

When was the first robot used in surgery?
 If the answer is '1983'; explain the reasoning:
The relevant information to answer the above question is: The first robot to assist in surgery was the Arthrobot, which was developed and used for the first time in Vancouver in 1983.