Median/Ulnar/Radial Nerve Entrapments

Question 1

The ligament of _____ connects the supracondylar process to the medial epicondyle and is only present in about 13% of the population. It is a possible (not likely) entrapment site for what nerve?

Answer 1

Struthers, MEDIAN N

Question 2

The bicipital aponeurosis is also called _____

Answer 2

Lacertus fibrosis

Question 3

The pro actor teres is a common entrapment site for what nerve?

Answer 3

Median

Question 4

The “accessory head of the flexor pollicis longus” is called _____ muscle

Answer 4

Gantzer’s

Question 5

_____ muscle (present in about 52% of the population) begins at the medial epicondyle and travels distolaterally to meet up with the head of flexor pollicis longus on the radius

Answer 5

Gantzer’s

Question 6

____ is the most common of the median nerve entrapments

Answer 6

Carpal tunnel syndrome (CTS)

Question 7

The Pinch Sign/test is testing the integrity of what nerve?

Answer 7

Anterior interosseus (branch of median)

Question 8

Tinel’s test of the median nerve would be brisk tapping where?

Answer 8

Anterior wrist (carpal tunnel area)

Question 9

The most proximal entrapment site of the ULNAR nerve is?

Answer 9

Arcade of Struthers (approx 8cm proximal to medial epicondyle)

Question 10

The most common site of entrapment of the ULNAR nerve?

Answer 10

Cubital tunnel (distal to medial epicondyle)

Question 11

Distal to the arcade of struthers you will find this entrapment site of the ULNAR nerve

Answer 11

Medial intermuscular septum (proximal to medial epicondyle)

Question 12

Ulnar nerve entrapment at the carpals is within what is called ____ tunnel

Answer 12

Guyon’s

Question 13

The sign of _____ indicates median nerve damage at or above the pronator teres. The patient cannot make a strong fist due to the weakness of the thumb, index and middle finger flexors

Answer 13

Benediction

Question 14

“Claw hand” (paralysis of medial lumbricals, flexor digitorum profundis to 4th and 5th digits, and unopposed extension at the IP joints of the medial fingers) is associated with damage to what nerve?

Answer 14

Ulnar

Question 15

The arcade of ____ is where the posterior interosseus nerve (branch of radial nerve) passes posterior to the supinator muscle

Answer 15

Frohse

Question 16

_____ nerve syndrome is characterized by WEAKNESS, especially on extension of the 3rd digit, while ____ nerve syndrome is characterized by PAIN in the posterolateral forearm, mainly.

Answer 16

Anterior interosseus, radial

Question 17

What orthopedic test? Tuck the thumb under your flexed fingers and ulnar deviate the wrist

Answer 17

Finkelstein’s test