![]() It was originally named by British surgeon Jonathan Hutchinson (1828-1913). ![]() ulnar styloid fracture: equates to a Frykman type IV fractureĪlthough these fractures are often undisplaced, they are relatively unstable and often benefit from percutaneous lag-screw fixation 6.scapholunate dissociation: this is especially true when the fracture line involves the articular surface near the scapholunate interval 7.Although often the fracture is undisplaced 5, depending on how sagittal the fracture orientation is, variable proximal migration of the fracture occurs, with an articular step which comes into contact with the scaphoid 4.Ī number of associated injuries are frequently encountered and may significantly impact on management: The fracture extends proximally in a variable oblique direction (from essentially transverse to almost sagittal) from the distal radial articular surface through the lateral cortex of the distal radius, thus separating the radial styloid from the rest of the radius 4,5. ![]() Chauffeur fractures are considered type III fractures. Along with other distal radial fractures, the AP film can also be used to classify these fractures according to the Frykman classification of distal radial fractures. Plain films usually suffice in the assessment of chauffeur fractures. The latter occurs as the scaphoid forcibly impacts upon the radial styloid and can be considered an avulsion fracture with the radiocarpal ligaments remaining attached to the radial styloid 7. The former accounts for its name trying to start an old-fashioned car with a hand crank sometimes resulted in the crank rapidly spinning backward (backfire) out of the driver's grasp and striking the back of the wrist 5. It was initially called a Chauffeur’s fracture because when the chauffeur would turn the crank to start the car, the motor often would cause the crank handle to jerk back.These injuries are sustained either from direct trauma typically a blow to the back of the wrist or from forced dorsiflexion and abduction. This fracture is classified as an articular fracture. These are often overlooked and not part of the classification system.Ī Chauffeur’s fracture is also known as a radial styloid fracture or a Hutchinson’s fracture. A Barton’s fracture can be described as volar (more common) or dorsal (less common).Ī die punch fracture is a depression fracture of the lunate fossa of the distal radius fracture that occurs with a vertical load through the lunate. This is an intra-articular fracture and is associated with a dislocation of the radio-carpal joint. These types of fractures are caused by falling backward and an outstretched arm.Īnother type of distal radius fracture is a Barton’s fracture. This is also an extra-articular fracture that is volarly displaced. These fractures occur from a fall forward on an outstretched hand.Ī reverse Colles fracture is also known as Smith’s fracture. A Colles fracture is an extra-articular fracture with a dorsal displacement. Many fractures are named based on their fracture location, fracture pattern, and type of displacement.Ĭolles fractures are the most common type of distal radius fracture and account for about 90% of distal radius fractures. ![]() Similarly, Intra-articular fractures can be displaced or nondisplaced but occur within the joint.
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