Radial subluxation is very common in daily life, and correct diagnosis and treatment can relieve a lot of pain and trouble for children and their families, but in practice, misdiagnosis and omission are more common, and doctors’ lack of understanding of its pathogenesis is the main reason, leading to increased medical costs and increased pain for children. What is radial tuberosity subluxation? A: The small head of the radius is dislocated from the annular ligament by a pulling injury in the overhead position. It is common in children within 5-7 years of age. The child often has a history of passive upward pulling of the wrist/hand, often without clear self-inflicted injuries, etc. Typical clinical manifestations are: pain in the elbow, reluctance to lift the shoulder and elbow joint, which is often mistakenly thought to be a “shoulder dislocation”, but in fact it is not a shoulder joint problem, but an elbow joint injury. In general, there is no need to take radiographs, but if the medical history is inaccurate, be sure to take radiographs before resetting! Check the frontal and lateral radiographs of the elbow joint to exclude the common “Manganese fracture” in children to avoid missing the diagnosis. Treatment: After 48 hours, the fracture will be repositioned automatically or by manipulation. Method: Use the thumb to press the radial tuberosity laterally to rotate and flex the elbow joint, rotate it internally and externally while flexing, and when the reset is successful, the thumb will feel a popping sound and the affected limb can be lifted above the shoulder. After reset, it is not necessary to fix it, but parents should be warned not to pull it violently to avoid repeated dislocation. Prevention: 1. Inform parents of the site of the dislocation (the elbow joint, not the shoulder joint!) 2. Parents should avoid pulling the child’s forearm upward, and pull the upper arm instead. Common daily life scenarios such as: when the child falls and when wearing overhead clothing. Typical posture of radial tuberosity subluxation, this picture of a child with radial tuberosity subluxation on the right side.