Yergason's Test primarily evaluates pathology of the Biceps Tendon and transverse humeral ligament.

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Multiple Choice

Yergason's Test primarily evaluates pathology of the Biceps Tendon and transverse humeral ligament.

Explanation:
Yergason's test stresses the long head of the biceps tendon as it sits in the bicipital groove and under the transverse humeral ligament. When the elbow is flexed to about 90 degrees and the forearm is pronated, the patient attempts to supinate against resistance. If the transverse humeral ligament is torn or lax, the biceps tendon can slip or snap out of the groove as it is pulled anteriorly, producing a snapping/popping sensation or pain. This makes the test specifically useful for identifying pathology of the biceps tendon and instability related to the transverse humeral ligament, rather than primarily signaling impingement, a rotator cuff tear, or a labral tear.

Yergason's test stresses the long head of the biceps tendon as it sits in the bicipital groove and under the transverse humeral ligament. When the elbow is flexed to about 90 degrees and the forearm is pronated, the patient attempts to supinate against resistance. If the transverse humeral ligament is torn or lax, the biceps tendon can slip or snap out of the groove as it is pulled anteriorly, producing a snapping/popping sensation or pain. This makes the test specifically useful for identifying pathology of the biceps tendon and instability related to the transverse humeral ligament, rather than primarily signaling impingement, a rotator cuff tear, or a labral tear.

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