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.

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.

External Rotation Lag Sign | Full Thickness Rotator Cuff Tears Physiotutors 972K subscribers Subscribed

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

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

The External Rotation Lag Sign is used to identify supraspinatus or infraspinatus tears. Specifically, this test is helpful in identifying the presence of full thickness tears.

Our goal is to identify any abnormalities in the muscle bulk or any asymmetrical bony defects. Inspect the front, the back and the side of the shoulder.

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 …

Jun 11, 2023 · The Lag Sign of the Shoulder is a clinical test used to assess the presence of a full-thickness rotator cuff tear. During the test, the patient's arm is passively moved into …