From Google:
Yergason's Test
Yergason's test is a physical examination maneuver used to assess for pathology in the biceps tendon and transverse humeral ligament (THL) in the shoulder.
Purpose:
To detect biceps tendinitis or rupture
To identify a SLAP (superior labrum anterior-posterior) lesion
To assess the integrity of the THL
Procedure:
The patient sits or stands with their elbow flexed at 90 degrees and their forearm pronated.
The examiner places one hand on the patient's forearm, just above the wrist, to provide resistance.
The patient supinates their forearm (turns their palm up) while the examiner resists the movement.
The examiner palpates the biceps tendon in the bicipital groove.
Positive Findings:
Pain in the bicipital groove, A clicking or snapping sensation, and A bulge or prominence in the bicipital groove.
Interpretation:
A positive Yergason's test suggests that there may be pathology in the biceps tendon or THL. Further imaging studies, such as an ultrasound or MRI, may be necessary to confirm the diagnosis.
Limitations:
Yergason's test is not a definitive diagnostic test.
It may be false positive in patients with other shoulder conditions, such as rotator cuff tears.
It is not sensitive for detecting SLAP lesions.
Other Tests:
Speed's test, Anterior apprehension test, Hook test, and Supination-pronation test