Salter-Harris type II fracture
Salter-Harris type II fractures are the most common type of physeal fractures that occur in children. There is a fracture that extends through the physis and into a portion of the metaphysis. A triangular metaphyseal fragment, otherwise known as the Thurston Holland fragment, will be left intact.
Epidemiology
Approximately 75% of physeal fractures will be a Salter-Harris type II with 33-50% occurring at the distal radius. Other common fracture sites are the distal tibia, distal fibula and, phalanges .
Radiographic features
In reality, the majority of fractures that involve the physis have at least a small fragment of metaphysis associated with them and are therefore type II injuries.
Plain radiograph
- fracture through the physis
- Thurston Holland fragment
- angulation, displacement and rotation may occur
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