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After further review of his activities during the previous 24 hours, the patient recalled that he had bought a new Nintendo Wii (pronounced "wee") video-game system and had spent several hours playing the tennis video game. [...]

The final diagnosis for the isolated right shoulder pain was Nintendinitis. However, the variant in this patient can be labeled more specifically as "Wiiitis." The treatment consisted of ibuprofen for 1 week, as well as complete abstinence from playing Wii video games. The patient recovered fully. Nintendinitis was first described in 1990,1 and there have been many case reports of injuries related to intensive use of recreational technologies, mainly in children and mainly from intensive use of the extensor tendon of the thumb.

With the growing use of this new video-game system, the risk of the Wiiitis variant may be higher than that of Nintendinitis reported in the literature, especially among adults.