What deformity is present on sagittal images?
Humpback deformity, due to angulation between the proximal and distal poles.
What are the consequences of a humpback deformity?
Humpback deformity indicate progressive collapse of the scaphoid with likely non-union. Even if eventual union is achieved, destabilisation of the wrist is common due to the abnormal ensuing bio-mechanics of the wrist.
What sort of screw is typically used to internal fix scaphoid fractures?
Headless self-compressing cannulated screw.
Comminuted anteriorly impacted waist of scaphoid fracture producing a humpback deformity (seen on sagittal images).
Scapholunate relationship is maintained. Mild widening of the scapholunate joint probably represents stretching, rather than disruption. Old ununited avulsion fractures of the ulnar styloid process. Small fleck of bone within the recess of the distal radioulnar joint.