Troublers

Question 1

The inability to make an ok sign with the hand would be a sign of damage to what nerve?

Answer 1

The anterior interosseus nerve only damaging the pronator quadratus, 1/2 FDP and FPL.

Question 2

Damage to the radial nerve in the axilla would show what symptoms?

Answer 2

Wrist drop, loss of ability to extend the wrist and fingers.

Also known as Saturday night palsey, honeymoon palsy, crutch palsy.

Question 3

How would damage to the radial nerve at the wrist present?

Answer 3

This is damage to the superficial branch of the radial nerve leading to numbness at the dorsum of the hand between the 1 and second interfaces.
Handcuff palsy.

Question 4

In anger, a person punches a brick wall. Which bone of the hand are you most concerned about pre-Xray

Answer 4

5th metacarpal bone

“Boxers fracture”

Question 5

A football player makes a strong grab on another players jersey, what injury are you suspecting/

Answer 5

Rupture or avulsion of the FDP tendon from the distal phalanx.

Pt will be unable to flex at the DIP if the effected joint.

Question 6

What is mallet finger and what is it caused by?

Answer 6

Mallet finger is the rupture or avulsion of the extensor expansion from the base of the distal phalanx leading to the inability to extend the dip joint.

Question 7

What nerve innervates the hypothenar muscles?

Answer 7

The deep branch of the ulnar nerve

Question 8

What nerve innervates the thenar muscles?

Answer 8

The recurrent branch of the median nerve.

Question 9

What nerves innervate the flexor pollicus brevis?

Answer 9

The superficial head innervated by the recurrent branch of the median nerve and the deep head innervated by the deep branch of the ulnar nerve.

Question 10

What nerve innervates the adductor pollicus?

Answer 10

The deep ulnar nerve.

IS NOT A THENAR MUSCLE.

Question 11

What neve innervates palmaris brevis?

Answer 11

The superficial branch of the ulnar nerve.

Question 12

What is guilons canal?

Answer 12

A canal of the formed between the pisiform and hamate through which the ulnar nerve passes. can lead to three types of syndromes if over compressed.

Question 13

What is a type 1 ulnar compression

Answer 13

Ulnar nerve trunk compressed in the proximal guyons canal leading to sensory and motor loss.

Question 14

What is a type 2 ulnar compression?

Answer 14

Deep ulnar nerve is compressed in the distal canal leading to motor symptoms only through muscle weakness.

Question 15

What is a type three ulnar compression?

Answer 15

superficial branch is compressed in the distal canal leading to sensory symptoms only

Question 16

How is ulnar clar demonstrated?

Answer 16

Loss of the ulnar nerve at the wrist showing ulnar claw passively. Unable to flex hand into a fist. Pt can still flex medial 2 digits as long flexors are still in tact

Question 17

What tendons are found in the carpal tunnel?

Answer 17

9 tendons

FDP FDL and FPL.

Question 18

A thumb that is permanently adducted and laterally rotated will appear as an apes hand… this is a clinical finding of what?

Answer 18

This is see with prolonged compression of the median nerve seen in carpal tunnel syndrome.

Ape hand only with normal function of digits 2 and 3 and sensation would be a loss of the recurrent median nerve.

Question 19

What sort of peripheral injury pattern will you likely see if an injury occurs at the root or trunk level of the brachial plexus?

Answer 19

Likely to see damage in a dermatomal pattern and a problem with myotomal deficits.

Question 20

An injury to the peripheral nerves or terminal branches displays how?

Answer 20

Damage to cutaneous innervation!