Thoracic Outlet Syndrome (TOS) Overview

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What is the approximate percentage of the population affected by TOS?

5-6%

10-12%

8% (correct)

1-2%

What is the female to male ratio for TOS?

2:1

1:1

4:1

3:1 (correct)

Which of the following is not a common anatomical defect associated with TOS?

Abnormal bonds and ligaments

Cervical rib

Long C7 transverse process

Fracture of the humerus (correct)

What percentage of TOS cases affect the vascular structures such as the subclavian artery and vein?

2-5% Signup and view all the answers

What is the most common side affected by a cervical rib in TOS?

Right Signup and view all the answers

Which of the following is not a common muscle anomaly associated with TOS?

Biceps tendon rupture Signup and view all the answers

Where does the brachial plexus and subclavian artery pass through in TOS?

Anterior and middle scalene muscles Signup and view all the answers

Which part of the brachial plexus is typically affected in TOS?

Lower trunk Signup and view all the answers

What is the typical age range for TOS?

20-40 years Signup and view all the answers

What is the primary cause of compression on the brachial plexus and subclavian artery in TOS?

All of the above Signup and view all the answers

Thoracic Outlet Syndrome (TOS) Overview

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Questions and Answers

What is the approximate percentage of the population affected by TOS?

What is the female to male ratio for TOS?

Which of the following is not a common anatomical defect associated with TOS?

What percentage of TOS cases affect the vascular structures such as the subclavian artery and vein?

What is the most common side affected by a cervical rib in TOS?

Which of the following is not a common muscle anomaly associated with TOS?

Where does the brachial plexus and subclavian artery pass through in TOS?

Which part of the brachial plexus is typically affected in TOS?

What is the typical age range for TOS?

What is the primary cause of compression on the brachial plexus and subclavian artery in TOS?

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