Objective 15 - Upper Extremity Syndromes

Question 1

In pronator teres syndrome, what and where is the nerve compressed?

Answer 1

Median nerve before it reaches the carpal tunnel

Question 2

In pronator teres syndrome, when is pain reproduced?

Answer 2

when pronating a flexed wrist against resistance

Question 3

In carpal tunnel syndrome, what and where is the nerve compressed?

Answer 3

Median nerve is compressed within the carpal tunnel

Question 4

How does carpal tunnel syndrome present?

Answer 4

numbness and tingling in the first 3 fingers and the radial 1/2 of the ring finger

Question 5

What makes up Guyon’s Canal?

Answer 5

Roof: Superficial palmar carpal ligament
Floor: Deeper flexor retinaculum and hypothenar muscles
Medial side: pisiform and pisohamate ligament
Radial side: hook of the hamate

Question 6

Which artery and nerve go through the Guyon’s Canal?

Answer 6

Ulnar A & N

Question 7

Which 3 spaces (or triangles) does the neurovascular bundle (brachial plexus and subclavian vessels) course through?

Answer 7

Interscalene triangle (most common site of compression) - Anterior and middle scalene and first rib
Costoclavicular triangle - clavicle, first rib and scapula
Supcoracoid space - beneath the coracoid process deep to pectoralis minor tendon

Question 8

What is brachioradialis syndrome?

Answer 8

Wartenberg syndrome - entrapment of the superficial radial nerve due to compression of brachioradialis and extensor carpi radialis longus; split tendon of the brachioradialis