Wii knee.

We present the case of a 16-year-old boy who injured his knee whilst playing on the video games console Nintendo Wii. The patient presented with an acutely swollen and painful knee to the emergency department of our institution. Initial radiographs revealed an effusion and an osteochondral fracture. Further imaging with magnetic resonance imaging demonstrated evidence of lateral patella dislocation with medial patello-femoral ligamentous damage and a large femoral osteochondral fracture. The patient was successfully treated with surgical fixation of the osteochondral fragment and medial patello-femoral ligament repair. This case highlights the force that can be generated whilst using these new games consoles.