Background & Method: The aim of this study to compare functional outcome of close and open cross pinning in treatment of Gartland type 3 supracondylar humerus fracture in children. All patients operated with mediolateral cross pinning were included in this study. The age range was 3-12 years at the time of surgery. All patients were followed till the fracture united radiologically. The diagnosis was based on conventional X-ray imaging.