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MSK > Nerve Palsies of the Limbs > Flashcards

Nerve Palsies of the Limbs Flashcards

1
Q

Which Spinal Roots are compressed in Erbs Palsy?

A

C5/6

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2
Q

How will the shoulder be in an Erb’s palsy?

A

Adducted and Internally Rotated

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3
Q

How will the elbow present on a person w/ Erbs?

A

Extended and Pronated

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4
Q

How will the Wrist appear on a person with Erbs?

A

Flexed

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5
Q

Where would Klumpkes Palsy affect?

A

C8/T1

Creating Claw hand - a disorder of the small muscles of the hand

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6
Q

What nerve would be affected by a fractured sxcal neck of the humerus?

A

Axillary Nerve Palsy

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7
Q

What muscles groups would be affected by an Axillary Nerve Palsy?

A

Deltoid and Teres Minor

[Deltoid Atrophy]

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8
Q

What sensory loss would present in an Axillary Nerve Palsy?

A

Sensory loss over the regimental badge area

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9
Q

Which nerve runs along the radial groove of the humerus?

A

The Radial nerve

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10
Q

How would Radial nerve palsy in the axilla affect the joints in the arm and sensory supply?

A

Loss of elbow extension,
Loss of wrist extension,

Loss of sensation in forearm and hand

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11
Q

How would a radial nerve palsy in the arm affect the movements of joints and sensation?

A

Los of wrist extension

Loss of Sensation in forearm and hand

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12
Q

How would a radial nerve palsy in the forearm affect the movements of joints and sensation?

A

Loss of extension in The Posterior Interosseous Nerve

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13
Q

How would a radial nerve palsy in the wrist affect the movements of joints and sensation?

A

Loss of sensation in Superficial Radial Nerve

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14
Q

What nerve is compressed in carpal tunnel syndrome?

A

The median nerve (medial and lateral chord)

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15
Q

Which muscles does the median nerve supply?

A

Forearm flexors (except Flexor Carpi Ulnaris and medial Flexor Digitorum Profundus)

LOAF Muscles

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16
Q

What sensation does the medial nerve supply?

A

3.5 digits(from thumb) on palmar aspect fo hand

17
Q

What are the LOAF muscles?

A

Lateral two lumbricals
Opponens Pollicis
Abductor Pollicis Brevis
Flexor Pollicis Brevis

18
Q

What constitutes the floor of the carpal tunnel?

A

The carpal Bones

19
Q

What constitutes the roof of the carpal tunnel?

A

Flexor Retiniculum

20
Q

What 9 tendons and nerve are in the carpal tunnel?

A

The 4 Flexor Digitorum Superficial
The 4 Flexor Digitorum Profundus
The Flexor Pollicis Longus
The Median Nerve

21
Q

What is a traumatic cx of Carpal Tunnel Syndrome?

A

Distal Radius Fracture

22
Q

What are inflammatory cx of CT syndrome?

A

Gout, Rhematoid, TB, Amyloid

23
Q

3 types of swelling that can cx CT Syndrome?

A

Fibroma,
Ganglion,
Lipoma

24
Q

3 metabolic cx of CT syndrome?

A

Pregnancy,
Mucopolysaccharides,
Hypothyroidism

25
Q

How to tx CT?

A

Fasciotomy

26
Q

What two muscles does the ulnar nerve enter the arm through?

A

The Flexor Carpi Ulnaris

27
Q

What muscles does the ulnar nerve supply?

A

Medial half of Flex Digitorum Profundus,
Flex Carpi Ulnaris,
Intrinsic Muscles of the hand except the LOAF muscles

28
Q

What sensation does the ulnar n supply?

A

1.5 digits from the little finger

29
Q

Which nerve does cubital tunnel syndrome affect?

A

The ulnar nerve

30
Q

Where is the cubital tunnel?

A

Between the medial epicondyle and olecranon

W/ Fascial bands from Flexpr Carpi Ulnaris as it’s roof

31
Q

Where would you find wasting in cubital tunnel syndrome?

A

In the 1st web space, Hypothenar

32
Q

What is ulnar claw hand?

A

Hypextension at MCPJ

Flexion at IPJ

33
Q

What is the ulnar Paradox?

A

Distal Lesion has worse clawing than proximal

Due to intact long flexors w/ distal lesion

34
Q

What Ix could you do for Cubital tunnel syndrome?

A

Forment’s test

  • adductor pollicis - Ulnar
  • Flexor Pollicis longus - Median

If the ulnar nerve is damaged the patient will use the FPL from the median nerve and in gripping a piece of card with their thumb there thumb wil stick up

35
Q

What are the 3 main components of the sacral plexus?

A

Inferior Gluteal Nerve
Superior Gluteal Nerve
Sciatic Nerve

36
Q

What are the components of the sciatic nerve?

A

Common Peroneal N

Tibial N

37
Q

Where does the common peroneal nerve wrap around?

A

The Neck of the fibula

38
Q

What would a damaged peroneal nerve cause in the foot?

A

Impaired dorsiflexion as teh muscles of the ant leg raise the foot

39
Q

What would a damaged Lateral Femoral Cutanoeus Nerve cx?

A

Meralgia Parasthetica

- Compression as it travels under the inguinal ligamentl

MSK (6 decks)

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