Roos Stress Test
Original Editors - Yves Hubar
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Definition/Description[edit | edit source]
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Purpose
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This test is a diagnostic tool used in the identification of Thoracic outlet syndrome
It is also known as the “elevated arm stress test”.
Technique[1]
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Starting postion:
- The patient has both arms in the 90° abduction-external rotation postion
- Shoulders and elbows are in the frontal plane of the chest
Execution:
- The patient is to open and close the hands slowly over a 3-minute period
Results if normal:
- Only forearm muscle fatigue and minimal distress
Possible symptoms if TOS is present:
- gradual increase in pain at neck and shoulder, progressing down the arm
- Paraesthesia in forearm and fingers
- In case of arterial compression: arm pallor with arm elevated, reactive hyperemia when limb is lowered
- In case of vernous compression: Cyanosis and swelling
- Inability to complete test, and patient drops arms in lap in marked distress, recognized as reproduction of usual symptoms
- Reproduction of the usual symptoms that involve the entire extremity!
Possible results if carpal tunnel syndrome is present:
- Numbness in first three fingers due to compression of nervus medianus
Possible results in case of cervical disc syndrome:
- Pain in neck and shoulder from holding arms elevated but minimal distress in arm or hand.
Possible results in case of orthopedic shoulder problems:
- Intolerable symptoms confined to shoulder area
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References[edit | edit source]
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- ↑ Brantigan CO, Roos DB. Diagnosing thoracic outlet syndrome. Hand Clin. 2004 Feb;20(1):27-36.