aka Bone and Joint Bamboozler 003
A 50 year-old woman tripped down the last 5 steps of a flight of stairs. Her left forearm bore the brunt of the impact.
Fortunately, she sustained no other significant injuries. The radiographs of her painful and swollen left wrist are shown below:
Describe the fracture?
There is a fracture of the volar lip of the distal radius articular surface, with volar subluxation of the radiocarpal joint along with volar displacement of the fracture fragment.
What is the eponymous name for this fracture?
This is a volar Barton fracture.
Described by John Rhea Barton (1794-1871) in 1838
Barton was an ambidextrous surgeon who was born, worked, and died in Pennsylvania. He spent time as a student of John Hunter in London and was renowned as a daring surgeon who could perform an osteostomy of an ankylosed hip in just seven minutes.
Dorsal Barton fractures are less common than volar fractures – and both are rare (<4% of distal radius fractures).
What the typical mechanism of injury?
Barton fractures result from high-energy impact transmitted to the articular surface of the radiocarpal joint (e.g. FOOSH – ‘fall onto outstretched hand‘).
The volar or dorsal rim fractures depending on whether the wrist is in volar flexion or dorsiflexion, respectively.
Alternatively, a volar rim fracture may result from tension failure and avulsion due to the pull of the strong radiocarpal ligaments when the wrist is forcefully dorsiflexed on impact.
What imaging and views are best for this assessing this injury?
Lateral wrist radiographs best demonstrate the degree of articular involvement and displacement.
The fracture is also easily seen on a PA radiograph of the wrist.
What specific associated injuries and complications should be considered?
Early complications and associated injuries:
- Carpal bone fracture or dislocation
- Nerve Injuries to the sensory branches of the radial nerve, median nerve and/or ulnar nerve
- Radiocarpal joint arthritis and chronic pain
What is the management of this injury?
Treatment of a Barton fracture may depend on the size of the fracture fragment and the degree of displacement.
Request an orthopedic review early, as operative repair is often required.
Non-displaced Barton fracture:
- consider sugar-tong splint with wrist in neutral position
Displaced Barton fracture:
- closed reduction under procedural sedation
- if stable, consider sugar-tong splint with wrist in neutral position
- if unstable or inadequately reduced, open reduction and internal fixation
Although closed reduction is sometimes successful, many experts advocate early operative intervention for all Barton fractures.
Bone and Joint Bamboozler
Chris is an Intensivist and ECMO specialist at the Alfred ICU in Melbourne. He is also a Clinical Adjunct Associate Professor at Monash University. He is a co-founder of the Australia and New Zealand Clinician Educator Network (ANZCEN) and is the Lead for the ANZCEN Clinician Educator Incubator programme. He is on the Board of Directors for the Intensive Care Foundation and is a First Part Examiner for the College of Intensive Care Medicine. He is an internationally recognised Clinician Educator with a passion for helping clinicians learn and for improving the clinical performance of individuals and collectives.
After finishing his medical degree at the University of Auckland, he continued post-graduate training in New Zealand as well as Australia’s Northern Territory, Perth and Melbourne. He has completed fellowship training in both intensive care medicine and emergency medicine, as well as post-graduate training in biochemistry, clinical toxicology, clinical epidemiology, and health professional education.
He is actively involved in in using translational simulation to improve patient care and the design of processes and systems at Alfred Health. He coordinates the Alfred ICU’s education and simulation programmes and runs the unit’s education website, INTENSIVE. He created the ‘Critically Ill Airway’ course and teaches on numerous courses around the world. He is one of the founders of the FOAM movement (Free Open-Access Medical education) and is co-creator of litfl.com, the RAGE podcast, the Resuscitology course, and the SMACC conference.
His one great achievement is being the father of three amazing children.
On Twitter, he is @precordialthump.