Terrible triad of the elbow refers to a posterior dislocation of the elbow with a fracture of the radial head and coronoid process of the ulna. The injury was first named the “terrible triad of the elbow” by Hotchkiss in Rockwood and Green’s Fractures in Adults, Fourth Edition, 1996. This injury, its treatment and prognosis were reported in detail by Ring et al in J Bone Joint Surg in 2002 and Pugh et al in Tech Hand Upper Surg. The elbow terror triad is a serious high-energy trauma to the elbow, with high fall injuries and car accidents being common causes. The common mechanism is caused by compression and shear violence in the longitudinal direction received by the elbow joint in the extension position during a fall from a height. In the past, conservative treatment such as external fixation or traction was adopted for the elbow joint terror triad, but since it is difficult to maintain the stability of the elbow joint and there is a tendency of re-dislocation, surgical treatment is now advocated to restore the stability of the ulnar coronoid process, treat the radial head fracture by internal fixation or metal prosthesis replacement to restore the stability of the lateral column, repair the lateral collateral ligament and related structures, repair the medial collateral ligament if necessary or apply movable If necessary, repair the medial collateral ligament or apply a movable external fixation brace to facilitate early movement.