Figure 2 Surgical procedures of closed reduction percutaneous intramedullary fixation with Kirschner wire for Case 1. (A) The first pre-bent Kirschner wires was inserted into the lateral epicondyle of the humerus. (B) Another pre-bent Kirschner wires was inserted into the medial epicondyle of the humerus. (C, D) The third Kirschner wire was placed in a retrograde direction into the lateral side of distal humerus and passed through the contralateral bone cortex to achieve anti-flexion/extension and rotation-stable fixation. Intra-operative fluoroscopy showed satisfactory fracture reduction.