Which of the following movements will be affected if the greater tubercle of the humerus is lost:
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.
Abduction and lateral rotation
Adduction and flexion
Adduction and medial rotation
Flexion and medial rotation