Isolated scaphoid fracture with anterosuperior dislocation of the proximal fragment.

Isolated fracture of the scaphoid with an associated anterosuperior dislocation of the proximal fragment is an extremely rare injury. We present two cases where open reduction and internal fixation through a palmar and dorsal approach was performed. No instances of non-union, necrosis of the proximal fragment of the scaphoid or scapholunate dissociation were noted during a mean follow-up period of 18 months. Clinical results (active motion, power grip, DASH) following such injury and intervention are presented. The aetiology of this rare injury is discussed.