The External Rotation Lag Sign (ERLS), described by Hertel et al in 1996, has been widely accepted as a valid test for the diagnosis of tears involving at least the infraspinatus muscle.

The Lateral/External Rotation Lag Sign also known as Infraspinatus Spring Back Test assesses for pain or weakness of the supraspinatus, infraspinatus and teres minor muscle.

External Rotation Lag Sign | Full Thickness Rotator Cuff Tears Physiotutors 962K subscribers Subscribed

Dec 23, 2024 · This test will help you identify a tear or compromise in the subscapularis tendon, which moves the shoulder into internal rotation. To perform the test, place the back of your …

In this test the examiner applies a downward pressure on the humerus by pulling at the level of the wrist, and at the same time observes the lateral aspect of the deltoid region.

3 days ago · Inability to maintain the position or drifting into internal rotation indicates a positive test, suggesting rotator cuff weakness or tear.

Aug 6, 2021 · External Rotation Lag Sign technique passively flex the elbow to 90 degrees, holding wrist to rotate the shoulder to maximal external rotation. Tell the patient to hold the …

Feb 20, 2025 · External Rotation Lag Sign is used to check for the integrity of the infraspinatus and teres minor tendons of the shoulder rotator cuff. It’s called “Spring-Back” Test.

The purpose of this clinical diagnostic test is to assess the presence of a full-thickness rotator cuff tear. In particular the ERLS is designed to test the integrity of the supraspinatus and …

Aug 1, 2025 · Learn how to perform and score the External Rotation Lag Sign test for rotator cuff tears.