Monteggia fracture


The Monteggia fracture is a fracture of the proximal third of the ulna with dislocation of the proximal head of the radius. It is named after Giovanni Battista Monteggia.

Causes

Mechanisms include:

Classification

There are four types :

These are known as the Bado types.

Management

Monteggia fractures may be managed conservatively in children with closed reduction, but due to high risk of displacement causing malunion, open reduction internal fixation is typically performed.
Osteosynthesis of the ulnar shaft is considered the standard of care in adults. It promotes stability of the radial head dislocation and allows very early mobilisation to prevent stiffness. The elbow joint is particularly susceptible to loss of motion.

Prognosis

In children, the results of early treatment are always good, typically normal or nearly so. If diagnosis is delayed, reconstructive surgery is needed and complications are much more common and results poorer. In adults, the healing is slower and results usually not as good.
Complications of ORIF surgery for Monteggia fractures can include non-union, malunion, nerve palsy and damage, muscle damage, arthritis, tendonitis, infection, stiffness and loss of range of motion, compartment syndrome, audible popping or snapping, deformity, and chronic pain associated with surgical hardware such as pins, screws, and plates. Several surgeries may be needed to correct this type of fracture as it is almost always a very complex fracture that requires a skilled orthopedic surgeon, usually a specialist familiar with this type of injury.