The aim of the study was to explore the clinical outcome of posterolateral and anteromedial approaches in treatment of terrible triad of the elbow.The study involved 12 patients with closed terrible triad of the elbow treated by posterolateral and anteromedial approaches between January 2010 and June 2012.The mechanism of injury included fall from height in 9 patients and traffic accident in 3.According to O'Driscoll classification for fractures of the ulnar coronoid, there were 11 patients with type Ⅰ and 1 with type Ⅱfractures.According to Mason classification for fractures of the radial head, there were 3 patients with type Ⅰ , 7 with type Ⅱ and 2 with type Ⅲ fractures.