Nerve Palsies

Question 1

Brachial nerve palsies

Answer 1

Erb’s palsy,
Klumpke’s Palsy,
Total Brachial Plexus

Question 2

Carpal tunnel syndrome is caused by compression of which nerve?

Answer 2

Median nerve

Question 3

Cubital tunnel syndrome is caused by compression of which nerve?

Answer 3

Ulnar nerve

Question 4

Which nerve roots are involved in Erb’s palsy?

Answer 4

C5, C6

Question 5

Which nerve roots are involved in Klumpke’s palsy?

Answer 5

C8, T1

Question 6

Which nerve roots are involved in total brachial plexus?

Answer 6

C5-T1

Question 7

Presentation of Erb’s palsy?

Answer 7

Shoulder adducted and internally rotated,
Elbow extended and pronated,
Wrist flexed

Question 8

Klumpke’s palsy presentation?

Answer 8

Claw hand

As affects small muscles of hand

Question 9

Nerve roots of the musculocutaneous nerve?

Answer 9

C5, 6, 7

Question 10

What cord is the musculocutaneous nerve formed from?

Answer 10

Lateral cord

Question 11

How does the musculocutaneous nerve terminate?

Answer 11

Terminates as the lateral cutaneous nerve to the forearm

Question 12

What is Hilton’s law?

Answer 12

A sensory nerve supplying a joint also supplies the muscle moving the joint and the skin overlying

Question 13

Nerve roots forming the axillary nerve?

Answer 13

C5, C6

Question 14

What cord forms the axillary nerve?

Answer 14

Posterior cord

Question 15

What bone does the axillary nerve wrap around?

Answer 15

The neck of the humerus

Question 16

What does the axillary nerve supply?

Answer 16

Deltoid,
Teres minor,
Skin of the regimental badge area

Question 17

Common causes of axillary nerve palsy?

Answer 17

Shoulder dislocation,

Fracture surgical neck of humerus

Question 18

Nerve roots that form the radial nerve?

Answer 18

C5, 6, 7, 8, T1

Question 19

What cord forms the radial nerve?

Answer 19

Posterior cord

Question 20

What groove does the radial nerve run through on the humerus?

Answer 20

Radial groove

Question 21

What does the radial nerve supply?

Answer 21

Triceps,
Brachioradialis,
ECRB,
ECRB

Question 22

What is the presentation of radial nerve palsy dependent on?

Answer 22

Site of lesion

Question 23

Radial nerve palsy presentation in axilla?

Answer 23

Loss of elbow extension,
Loss of wrist extension,
Sensory changes in forearm and hand

Question 24

Radial nerve palsy presentation in arm?

Answer 24

Loss of wrist extension,

Sensory loss

Question 25

Radial nerve palsy presentation in forearm?

Answer 25

Loss of finger extension

Question 26

Radial nerve palsy presentation at wrist

Answer 26

Loss of sensation eg feels like handcuffs

Question 27

Main characteristic presention of radial nerve palsy?

Answer 27

Wrist drop

Question 28

Roots that make up median nerve?

Answer 28

C5, 6, 7, 8, T1

Question 29

Cords that make up the median nerve?

Answer 29

Medial and lateral cord

Question 30

What does the median nerve innervate?

Answer 30

Flexors of forearm, LOAF muscles, Sensation of radial 3.5 digits

Question 31

What makes up the floor of the carpal tunnel?

Answer 31

Carpal bones

Question 32

What makes up the roof of the carpal tunnel?

Answer 32

Flexor retinaculum

Question 33

Contents of carpal tunnel?

Answer 33

FDS tendons x4, FDP tendons x4, FPL tendon, Median nerve

Question 34

Causes of carpal tunnel syndrome groups?

Answer 34

``` Developmental, Trauma, Swellings, Inflammatory, Metabolic ```

Question 35

Trauma causes of carpal tunnel syndrome?

Answer 35

Distal radius fracture

Question 36

Swelling causes of carpal tunnel syndrome?

Answer 36

Ganglion, Fibroma, Lipoma

Question 37

Inflammatory causes of carpal tunnel syndrome?

Answer 37

Rheumatoid, Gout, TB, Amyloid

Question 38

Metabolic causes of carpal tunnel syndrome?

Answer 38

Pregnancy, Mucopolysaccharidoses, Hypothyroidism

Question 39

Carpal tunnel syndrome presentation?

Answer 39

Nocturnal pain and parasthesia over median nerve distribution, Wasting of the thenar muscles

Question 40

Special tests for carpal tunnel syndrome?

Answer 40

Tinnels, | Phalens

Question 41

Ulnar nerve is made up of what nerve roots?

Answer 41

C8, T1

Question 42

Cubital tunnel syndrome presentation?

Answer 42

Numbness on ulnar side of hand, difficulty with fine tasks, Hypothenar muscle wasting, Ulnar claw hand

Question 43

What is ulnar claw hand

Answer 43

Hyperextension at MCPJ, | Flexion at IPJs

Question 44

Is ulnar claw hand worse with a distal or proximal lesion?

Answer 44

Distal, | Due to intact long flexors with distal lesion

Question 45

What is Froment’s test?

Answer 45

Patient and Dr hold paper and both have to pull away, If ulnar nerve isn’t working, patient will cheat and use flexor pollicis longus instead of adductor pollicis

Question 46

What bone does the common peroneal nerve wrap around?

Answer 46

The neck of the fibula

Question 47

What does the deep femoral nerve supply?

Answer 47

Anterior compartment of leg

Question 48

What does the superficial peroneal nerve supply?

Answer 48

Lateral compartment

Question 49

Presentation of common peroneal nerve palsy?

Answer 49

Foot drop

Question 50

What nerve supplies muscles in the anterior compartment of the thigh?

Answer 50

Femoral nerve

Question 51

Which nerve supplies the anterior compartment muscles of the thigh

Answer 51

Obturator nerve

Question 52

Which nerve innervates the posterior compartment of the thigh?

Answer 52

Sciatic nerve

Question 53

What causes meralgia parasthetica?

Answer 53

Compression of lateral femoral cutaneous nerve of the thigh

Question 54

What is the presentation of meralgia parasthetica?

Answer 54

Altered sensation and pain of lateral thigh