After a healthy 14-year-old girl fractured her foot playing WiiFit, super-sciencey Karen A. Eley, M.R.C.S.(Ed), of Oxford wrote to the medical journal to bring attention to a host of video-game related injuries dating back as far as 1990:
In 1990, Brasington described "Nintendinitis" in a patient with pain over the extensor tendon of her thumb after 5 hours of playing a Nintendo video game. Nintendo next released the highly popular Wii games console that includes a wireless remote capable of detecting movement in three dimensions. Clinicians began to see patients with "Wiiitis."
Acute Wiiitis was first diagnosed in a 29-year-old patient in 2007 who woke up with intense shoulder pain the day after he bought a Nintendo Wii—and subsequently played what's known in the medical world as "a shit ton."
The only cure for Wiiitis? Abstinence from playing Wii.