Lift off test is done to assess

NEET SS
#1

Lift off test is done to assess the function of -

    1. Supraspinatus
    1. Infraspinatus
    1. Teres minor
    1. Subscapularis

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EXP:

Lift Off Test (Gerber’s test)

  • Lift off test is done to assess the strength of subscapularis muscle and detect a rupture of the subscapularis tendon.
  • Subscapularis functions primarily as an internal rotator of the shoulder
  • The test is preformed with the arm extended and internally rotated such that the dorsum of the hand rests against the lower back.
  • Subscapularis is maximally active in this position.
  • Patient is then instructed to lift his/her hand off the back (Lift - off) (Attempting further internal rotation)
  • If the patient is able to lift the dorsum of the had off the back the subscapularis tendon is intact and the test is considered negative.
  • If the patient is not able to lift the dorsum of the hand off the back the subscapularis tendon is torn and the test is considered positive.
  • The lift off test is sensitive and specific test for subscapularis function and this has been validated by electromyography studies.