This is a fracture-dislocation of the distal radius, sometimes mistaken for a Colles' fracture. The fracture line runs across the volar lip of the radius and into the wrist joint. The hand and the fragment of distal radius undergo a proximal and volar displacement.
A Barton's fracture is unstable and easily redisplaced. It should be fixed internally with a small buttress plate attached to the volar aspect of the radius.
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