Lift-off test is a shoulder examination to determine scapular instability or tears in subscapularis tendon.
- Patient may be seated, standing or prone, patient rests dorsal surface of hand against sacrum, then attempts to move hand posteriorly off sacrum.
- Examiner may observe action or apply gentle resistance to motion.
Positive Inability to lift hand off sacrum → Complete tear or paralysis on subscapularis muscle, rotator cuff lesion, subscapularis MFTP.
The subscapular muscle may also be tested with resisted internal rotation of the humerus (elbow at 90° & humerus in dependent position).