[Traumatic hip dislocations. Epidemiologic data at Davos Hospital and a multicenter study in Graubünden Canton].

We report about 86 patients with traumatic dislocation of the hip. Group 1 consisted of 26 patients of the hospital of Davos, group 2 of 60 patients of a multi-center evaluation of 7 hospitals in the Kanton Graubünden. 53 were males and 33 females. 13 patients were 16 years old or younger, of these 5 below 10 years. 69% are injuries in sports, 66% in alpine skiing. 78 had a posterior, 5 an anterior and 3 central dislocation with a fracture of the floor of the acetabulum. Concomitant local injuries were seen in 76.9% of traffic accidents and only in 22% of skiing injuries. Closed reduction was performed in 81 patients on the average less than two hours after injury, in 5 cases an open reduction was necessary. The subsequent treatment was in 15 cases operative, consisting in reconstruction of the concomitant injuries.