What type of fracture involves both vertical fracture through the epiphysis and metaphysis, often leading to joint deformity?

The fracture described is indicative of a Type 4 fracture, which is characterized by its involvement of both the epiphysis and metaphysis, extending vertically through these regions. This type of fracture typically affects the growth plate, which can result in joint deformity and impairment of normal bone growth. The vertical orientation of the fracture line allows for both sections of the bone to be affected significantly, which can lead to complications if not properly treated.

In pediatric cases, this type of fracture is particularly concerning because it impacts areas of active growth, necessitating careful management to ensure proper alignment and healing. The potential for joint deformity arises from the displacement or instability that can occur with this type of injury, emphasizing the need for accurate diagnosis and intervention. Understanding the mechanism and anatomy involved in Type 4 fractures is crucial for effective treatment and to mitigate long-term consequences such as growth disturbances or functional deficits.