In a Galeazzi fracture-dislocation, which bone is fractured and which joint is disrupted?

• A Ulna fracture with proximal radioulnar joint dislocation
• B Both radius and ulna fractures with radiocarpal joint subluxation
• C Radius fracture at junction of middle and distal thirds with distal radioulnar joint dislocation ✓
• D Radius fracture at proximal third with superior radioulnar joint dislocation

Explanation

Galeazzi fracture-dislocation consists of a fracture of the radius at its junction of middle and distal thirds combined with disruption of the distal radioulnar joint (DRUJ). It is sometimes called a 'fracture of necessity' as it virtually always requires ORIF of the radius followed by assessment of DRUJ stability. Isolated Galeazzi injuries are rare in children. Monteggia fracture-dislocation is the reverse — proximal ulna fracture with proximal (superior) radioulnar joint dislocation (radial head dislocation).

Reference: Maheshwari Essential Orthopaedics, 6th ed.

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Written and medically reviewed by the StethoPrep medical team.