The frontal left elbow x-ray shows a lateral condyle humerus fracture.
The lateral view of the elbow shows a visible posterior fat pad.
Lateral condyle humerus fracture is the second most common elbow injury in children after supracondylar fracture. The actual bony component to this injury is small but there will be a large fracture through the growing cartilaginous distal humerus. This can lead to growth disturbance. Hence, it is important to recognize this injury promptly and refer the patient to the orthopaedic specialist.
Reference: Grainger & Allison’s Diagnostic Radiology, 6th Edition.