<prompt> Which is true regarding shoulder dislocation -Posterior dislocation is often over-lookedPain is severe in anterior dislocationRadiography may be misleading in posterior dislocationAll of the above  <response>: The features of posterior dislocation of the shoulder are not very striking, and for that reason the injury is often overlooked. An important sign is fixed medial internal rotation of the arm, which cannot be rotated outward externally, even to neutral position.Radiography may be misleading if only the ordinary anteroposterior film is available, because the dislocation may not be apparent or at least not obvious on this projection. 