II. Epidemiology
- Rare in children
III. Description
- Fracture of the distal to middle-third shaft of radius
- Dislocation of Distal radio-ulnar joint (ulna will appear medially displaced at the wrist)
- Risk of Ulnar Nerve injury
IV. Mechanism
- Fall on Outstretched Hand with wrist extended and pronated
V. Exam
- See Forearm Fracture
- Evaluate for wrist deformity
- Evaluate for distal radioulnar joint tenderness
VI. Signs (Triad)
- Images
- Radius Fracture (distal third)
- Radius Shortening
- Radio-ulnar dislocation (often missed)
- Occurs due to shortening of Fracture
- Shortening can only occur with injury elsewhere
VII. Associated Conditions
- Distal radioulnar space widening
- Ulnar styloid Fracture
- Radius shortening
- Ulnar dislocation
VIII. Management
- Surgery usually required