An indicator of this outcome is a patient whose hand internally rotates as their arm is raised in front of their face resulting in a hornblower's sign. (8) While this is not a wholly debilitating outcome, patient satisfaction and outcomes are generally lower since many activities of daily living require external rotation, such as combing the hair and brushing of teeth, even feeding oneself.
This is meant to improve the function of the external rotators the way medializing the CoR helped the deltoid during abduction to combat the hornblower's sign.