Yergason's test is primarily used to help detect injuries to the biceps tendon.
Understanding Yergason's Test
Yergason's test is a physical examination maneuver performed by healthcare professionals to assess the health and stability of the biceps tendon within the shoulder. It is particularly helpful in identifying specific injuries to the long head of the biceps tendon, which runs through the shoulder joint.
What Conditions Does Yergason's Test Help Diagnose?
Specifically, Yergason's test is useful in identifying:
- Biceps Tendon Injuries:
- Injuries to the long head of the biceps tendon.
- Transverse Humeral Ligament Tears: Tears in the ligament that holds the biceps tendon in place.
- SLAP Tears: Injuries to the superior labrum anterior and posterior of the shoulder socket.
- Biceps Tendonitis: Inflammation of the biceps tendon.
How is Yergason's Test Performed?
The test involves specific movements and resistance applied by the examiner. Typically, it's done as follows:
- The patient sits or stands with their elbow bent at 90 degrees and their forearm in a pronated position (palm facing down).
- The examiner holds the patient's wrist while the patient attempts to supinate (rotate the palm upwards) against resistance.
- The examiner also palpates (feels) the biceps tendon in the bicipital groove as the patient performs the movement.
A positive test occurs when the patient experiences pain at the bicipital groove or if the examiner feels a popping or subluxation (partial dislocation) of the biceps tendon. This suggests a possible injury to one of the structures listed above.
Importance of Accurate Diagnosis
An accurate diagnosis of shoulder pain is crucial for effective treatment. Yergason's test helps healthcare providers narrow down possible causes, leading to better treatment plans and patient outcomes. It assists in determining if the issues stem from the biceps tendon or other related shoulder structures.
| Condition | Indication with Yergason's Test |
|---|---|
| Biceps Tendon Injury (long head) | Pain and potential popping or subluxation at the bicipital groove |
| Transverse Humeral Ligament Tear | Pain and instability at the tendon's location |
| SLAP Tear | Pain potentially radiating or localized to the biceps tendon origin |
| Biceps Tendonitis | Tenderness and pain along the biceps tendon without instability or popping |
