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Radial Head Fractures:
Radial head fractures are more common in adults, where radial neck fractures are more common in children. Remember to look for fat pads to help make the diagnosis if it is not obvious on plain films. On plain films, a line drawn down the middle of the radial head should always line up with the capitellum of the humerus. If this does not occur the radial head is dislocated and/or fracture.
Orthopaedics use the Mason classification to help guide treatment, and break down fractures into 3 different types.
- Type I - is undisplaced, generally treated nonoperatively.
- Early mobilization prevents chronic elbow stiffness.
- Type II - a single fragment is displaced.
- May be treated nonoperatively if the displacement is minimal.
- The rule of threes is used. Nonsurgical treatment can be considered if the fracture involves less than one third of the articular surface, less than 30° of angulation, and if displacement is less than 3 mm
- Type III - is comminuted.
- Usually require operative intervention.