Hornblower's Sign

A finding by physical examination of the shoulder which indicates massive rotator cuff tear usually including the teres minor, which is positive when the patient cannot externally rotate the arm to 90º with the arm in abduction

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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.

Effect of prosthesis design on muscle length and moment arms in reverse total shoulder arthroplasty

Patients should demonstrate a combined external rotation lag sign and some form of a hornblower's sign. Specifically, we like to confirm a lag past 0[degrees] of external rotation when the arm is released from 20[degrees] to 30[degrees] of external rotation with the arm at the side.

Combined latissimus dorsi and teres major tendon transfers for external rotation deficiency in reverse shoulder arthroplasty

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