Radial neck fractures tend to occur in children between 8-11 years old, slightly older than the typical supracondylar humerus fracture. Radial neck fractures can occur in isolation or in combination with other elbow injuries, such as olecranon fractures or elbow dislocations. The ossification center of the radial head begins to ossify between 3 and 5 years old, and fuses with the radial shaft between 16 and 18 years old.
Radial neck fractures often occur after a fall onto an outstretched hand, often when the elbow is extended and undergoes a valgus force. Patients present with elbow pain, tenderness over the radial head, and pain with elbow motion, particularly pronation and supination. Radial neck fractures are described by their degree of angulation relative to the radial shaft. Older children and adolescents who present with tenderness over the radial head but no fracture seen on radiographs can be assumed to have an occult radial head fracture.
Full Article - https://www.orthopaedia.com/pediatric-fractures-of-the-upper-extremities/#Radial-Neck-Fractures
