Following surgical removal of a firm nodular cancer swelling in the right breast and exploration of the right axilla, on examination the patient was found to have a winged right scapula. Most likely this could have occured due to injury to the-
2.Coracoid process of scapula
3.Long thoracic nerve
4.Circumflex scapular artery
Most common cause of winging of scapula is paralysis of serratus anterior. Long thoracic nerve innervates Serratus anterior. Serratus anterior originates from outer surface of upper 8 ribs and inserts onto inferior angle and medial border of scapula.
It rotates the scapula to help in overhead abduction.
Steady the scapula to carry weight.
Pushing of arm forward in horizontal position.
Helps in forced inspiration.