Overview
This lecture explains how to perform and interpret the drop arm test, which is used to detect significant or full-thickness rotator cuff tears.
Performing the Drop Arm Test
- Passively lift the patient's arm to 90 degrees of abduction.
- Ask the patient to keep their arm in this raised position as you let go.
Interpreting the Results
- A negative drop arm test occurs when the patient can hold their arm steady at 90 degrees abduction.
- A positive drop arm test is when the patient cannot hold the arm up, showing lag or shoulder shrug.
- A positive sign suggests a large or full-thickness rotator cuff tear, not just rotator cuff impingement.
Key Terms & Definitions
- Drop Arm Test — A physical exam maneuver to assess for significant or full-thickness rotator cuff tears.
- Rotator Cuff Tear — A tear in the group of muscles and tendons stabilizing the shoulder joint.
- Abduction — Movement of a limb away from the midline of the body.
Action Items / Next Steps
- Practice performing the drop arm test on peers.
- Review shoulder anatomy and rotator cuff function for better understanding.