[Diagnosis of complete transphyseal separation of the distal humerus].

Transphyseal separation of the distal humerus is a rare injury. Trauma, battered child syndrome and birth-related injuries are amongst the most common causes of the injury. This case report illustrates the importance of applying proper imaging and analysis to detect the injury. However, the diagnosis can be missed on conventional radiographs due to the cartilaginous elbow in infants. Instead, magnetic resonance imaging, artrography or ultra-sound can be applied to detect the injury. In this case, the infant was treated non-operatively with good clinical outcome.