Which test is used to evaluate thoracic outlet syndrome?

Which test is used to evaluate thoracic outlet syndrome?

• A. Adson's test
• B. Roos test
• C. Allen test
• D. Wright's test

Answer: (D)

Thoracic outlet syndrome is diagnosed by provoking the same space where the neurovascular bundle can be compressed as the arm moves. Wright’s test specifically places the arm into a position of extreme abduction and slight extension to narrow the space under the pectoralis minor and across the costoclavicular area. If this maneuver reduces the radial pulse or reproduces symptoms such as numbness, tingling, or fatigue in the arm, it indicates compression in that outlet region. This direct positioning targets the common sites of compression for thoracic outlet syndrome, making Wright’s test a strong option for evaluation. Adson’s test also looks at compression near the scalene triangle but can be influenced by other factors like effort and anatomy, and Allen’s test is primarily about vascular patency to the hand rather than thoracic outlet compression. Roos test is another provocative maneuver used to assess functional ischemia with arm elevation, but Wright’s test is particularly informative for compression related to the pectoralis minor and the costoclavicular space, which is why it is considered a good choice for evaluating thoracic outlet syndrome.

Thoracic outlet syndrome is diagnosed by provoking the same space where the neurovascular bundle can be compressed as the arm moves. Wright’s test specifically places the arm into a position of extreme abduction and slight extension to narrow the space under the pectoralis minor and across the costoclavicular area. If this maneuver reduces the radial pulse or reproduces symptoms such as numbness, tingling, or fatigue in the arm, it indicates compression in that outlet region. This direct positioning targets the common sites of compression for thoracic outlet syndrome, making Wright’s test a strong option for evaluation.

Adson’s test also looks at compression near the scalene triangle but can be influenced by other factors like effort and anatomy, and Allen’s test is primarily about vascular patency to the hand rather than thoracic outlet compression. Roos test is another provocative maneuver used to assess functional ischemia with arm elevation, but Wright’s test is particularly informative for compression related to the pectoralis minor and the costoclavicular space, which is why it is considered a good choice for evaluating thoracic outlet syndrome.