<prompt> Which of the following movements will be affected if the greater tubercle of the humerus is lost:Abduction and lateral rotationAdduction and flexionAdduction and medial rotationFlexion and medial rotation  <response>: A i.e. Abduction lateral rotation The movement most commonly affected in greater tuberosity fracture is external rotation in abductionQ This is very obvious because the muscles inseed in greater tuberosity of humerus their actions are as following. 