DISI Wrist Flashcards
1
Q
What is DISI ?
A
Dorsal intercalated segment instability.
2
Q
Radiographically what does DISI look like ?
A
Dorsal tilt of the lunate.
The normal trapezoidal scaphoid complex can appear triangular.
3
Q
What causes DISI in the wrist ?
A
Scaphoid or distal radius fracture.
Ligamentous injury.
Radius malunion.
