<prompt> Which is true about the dislocation of hip joint?Posterior dislocation is commonerIn posterior dislocation whole lower limb is rotated mediallyIn anterior dislocation whole lower limb is rotated laterallyAll of the above  <response>: Posterior dislocation is the commonest dislocation.Posterior dislocation has typical deformity of flexion, adduction and internal medial rotation.Anterior dislocation has deformity of flexion, abduction and external lateral rotation. 