There was a problem loading this presentation. You may not have permission to view it.

You do not have permission to view this presentation.

Scaphoid Nonunion

OK

An error occurred while loading this content.

Please refresh the page to try again.

Refresh Now
Next
Back
 
You previously started this content
Replay
Resume
 
Login or join to view
Click to Play
 

Scaphoid Nonunion

Elliot K. Fishman, MD
Director of Diagnostic Imaging and Body CT, Professor of Radiology and Radiological Science, Johns Hopkins
Karen M. Horton, MD
Professor and Interim Chair, Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins
 
 

This is a patient who presented with chronic radial sided wrist pain. Radiographs of the wrist were obtained. The frontal radiograph demonstrates an abnormal appearance of the scaphoid. The second and third radiographs are oblique and lateral views which demonstrate a chronic united fracture of the distal pole of the scaphoid, likely from prior trauma. The scaphoid often does not heal following fracture due to its tenuous blood supply which can easily be disrupted following trauma. Ununited scaphoid fractues can predispose patients to a particular kind of osteoarthrosis of the wrist called SNAC wrist, or scaphoid nonunion advanced collapse. The ligaments of the proximal carpal row weaken which allows for proximal migration of the capitate and radioscaphoid osteoarthrosis.