Costoclavicular Test

Use the costoclavicular brace test to test your patient for thoracic outlet syndrome. Click here for a free template copy!

By Patricia Buenaventura on Apr 08, 2024.

Fact Checked by RJ Gumban.

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What is Thoracic outlet Syndrome?

Thoracic outlet syndrome is a collection of disorders characterized by the compression of nerves and blood vessels. At the same time, they traverse the thoracic outlet, a confined space bordered by the clavicle, first rib, and scalene muscles.

To diagnose TOS, one usually assesses the integrity of the neurovascular structures within this critical anatomical region with tests like the Eden test.

Printable Costoclavicular Test

Download this Costoclavicular Test to test your patient for thoracic outlet syndrome.

What is the Costoclavicular Test?

Also known as the Military Brace test or Eden test, the costoclavicular test is a diagnostic maneuver designed to assess the presence of thoracic outlet syndrome (TOS) in a patient. Healthcare professionals often employ the test to unravel the underlying causes of the symptoms in the condition, like pain, numbness, tingling, swelling, discoloration, or weakness in the arm or hand.

What happens during a Costoclavicular Test?


During the test, the patient will be instructed to assume a military brace position by simultaneously retracting and depressing their shoulders. Doing this action narrows their thoracic outlet space, potentially reproducing the symptoms associated with TOS.

Result interpretation

The referring physician will consider it a positive test if there's a significant reduction in the vigor of the patient's normal radial pulse, which implies possible costoclavicular syndrome. It's also a positive if the client experiences more neurological symptoms in the upper extremities on that side.

Costoclavicular Test example (sample)

Here's a filled-out costoclavicular test template PDF file, available to be used as a printed or digital document. Feel free to examine, save, or print this template. That way, you have it on hand whenever you need an idea of using the blank template. However, note that the client information and test results on the document presented in the sample are fictional.

Access and download a copy by viewing the sample below or clicking the "Example PDF" button.

Download this free Costoclavicular Test example here:

Costoclavicular Test example (sample)

Next steps

If the patient experiences a reproduction of symptoms during the test, it provides valuable information for healthcare providers to consider in the diagnostic process. Aside from the test, they may also employ other clinical assessments and imaging studies to establish a comprehensive diagnosis and develop an appropriate treatment plan.

Does thoracic outlet syndrome ever go away?
Does thoracic outlet syndrome ever go away?

Commonly asked questions

Does thoracic outlet syndrome ever go away?

The syndrome can go away, especially with the help of physical therapy or surgery and treatment.

How do healthcare practitioners test for thoracic outlet syndrome?

They test it by having the patient do movement-based tests and undergo physical exams, blood tests, CT, EMG, MRI, etc.

Who uses the costoclavicular test template?

Neurologists, physiatrists, vascular surgeons, thoracic surgeons, orthopedic surgeons, and family physicians are the healthcare practitioners who will most likely use the template.

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