This
projection shows the position of the head of the humerus in relation to the
glenoid cavity. It also shows, on this normal x-ray, that there is no
dislocation. In patients with suspected dislocation, this x-ray may not be
possible to obtain and a lateral shoot-through is a further method of
evaluating displacement. Fractures of the coracoid process and acromion, although
uncommon, can be visualized on this film. Fracture of the greater tuberosity,
which may be missed on the antero-posterior projection, can again be seen.
