Fig. 3

Normal alignment versus rotary subluxation of the scaphoid. a Lateral radiograph of the wrist showing normal alignment and rotation of the lunate (black outline) and scaphoid (white outline), with a normal scapholunate angle of 45° (black lines). b Lateral radiograph of the wrist of a different patient depicting rotary subluxation of the scaphoid. There is abnormal rotation of the scaphoid (white outline) where the proximal pole of the scaphoid has moved dorsally and there is volar tilt, causing an abnormal scapholunate angle of 70° (black lines). Note is made that the normal lunate angulation is maintained