Scapholunate dissociation may require dynamic stress views to
demonstrate (1,2). The natural progression of scapholunate dissociation
is a pattern of wrist arthritis involving the radioscaphoid and
capitolunate joints, referred to as ScaphoLunate Advanced Collapse or
"SLAC wrist" (3, 6). Very proximal scaphoid avulsion fractures (4,5)
are mechanically similar to scapholunate ligament injuries.