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.

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.

1 day ago · With the patient’s elbow flexed to 90° and positioned at the side, the examiner passively moves the arm into maximal external rotation and instructs the patient to hold it.

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

The External Rotation Lag Sign test is used to identify supraspinatus or infraspinatus tears, specifically, full thickness tears. To perform the external rotation lag sign test, the patient …

External rotation lag sign and hornblower sign (inability to maintain external rotation if the shoulder is flexed 90° and abducted 90°, indicating teres minor insufficiency) ...

Aug 1, 2025 · The External Rotation Lag Sign test evaluates the strength of the supraspinatus and infraspinatus muscles, which are key rotator cuff components. It helps diagnose shoulder …

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 arm in that …

The external rotation lag sign (ERLS) was originally described by Hertel et al in 1996 [1]. The purpose of this clinical diagnostic test is to assess the presence of a full-thickness rotator cuff …

Sep 23, 2025 · External Rotation Lag Sign. The external rotation lag sign (ERLS) is designed to test the integrity of the supraspinatus and infraspinatus tendons. The test is performed with the …