Fractures of the radial tuberosity are elbow injuries that occur easily in adults, usually with mild pain symptoms, and are easily misdiagnosed clinically. Head and neck fractures of the radial head account for about 6% of elbow injuries and are intra-articular fractures. There are Mason’s classification, Keonconen’s classification and Morrey’s classification for radial head fractures, among which Mason’s classification is accepted by everyone: Type I: a linear fracture, i.e., a nondisplaced fracture, in which the fracture line may pass through the edge of the radial head or be cleaved. Type II: a displaced fracture with separated marginal fractures. Type III: a comminuted fracture with or without displacement or a collapsed fracture. Type IV: a radial head fracture with elbow joint dislocation. During a fall, the elbow joint is straightened and lands on the palm of the hand outside the shoulder joint, which places the elbow joint in a strong valgus position, causing the radial head to violently strike the humeral tuberosity, resulting in a fracture of the radial head, and sometimes this similar violence may lead to a fracture of the humeral tuberosity or an injury to the medial aspect of the elbow joint, such as an avulsion fracture of the medial humeral epicondyle. Because the radial head and its neck, stem are not aligned in a straight line, but eccentrically to the radial side with the neck, the trabeculae of the outer 1/3 of the radial head are not perpendicular to the neck, stem, forming a mechanically weak part, when the external force causes the radial humeral tuberosity to impact, the trabeculae of the outer 1/3 of the radial head are not perpendicular to the neck, stem, forming a mechanically weak part, when the external force causes the radial humeral tuberosity to impact, the outer When the radial humeral head is impacted by an external force, the outer 1/3 of the radial head lacks the ability to resist shear forces, so the chance of fracture in this part increases significantly.