Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Nerves > Peripheral nerve injuries > Flashcards

Peripheral nerve injuries Flashcards

1
Q

What is a peripheral nerve?

A

The part of a spinal nerve distal to nerve roots

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What can cause nerve injuries?

A 
Compression
Trauma
Neurapraxia
Axonotmesis
Neurometsis
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are classical conditions of entrapment?

A

Carpal tunnel syndrome
Sciatica
Morton’s neuroma

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is neuropraxia?

A

Conduction block without nerve degeneration - ischaemia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Is neuropraxia reversible?

A

Yes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is axonotmesis?

A

Endoneurium intact but axons disrupted

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Is axonotmesis reversible?

A

Slightly - function can return but often not normal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is neurotmesis?

A

Complete nerve division

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What happens as a result of endoneural tubes being disrupted?

A

‘Miswiring’ during regeneration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

When is surgery indicated?

A

After 3 months if no recovery is identified

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is axonal growth rate?

A

1-3mm/day

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are clinical features of sensory nerve injury?

A

Dysaethesiae - anaesthetic(numb), hypo/hyperaesthetic, paraesthetic (pins and needles)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are clinical features of motor nerve injury?

A

Weakness or paralysis
Wasting
Dry skin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What happens to reflexes in nerve injury?

A

Diminished/absent

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the first modality to return in nerve healing?

A

Pain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What determines prognosis of recovery for nerve injury?

A

Whether nerve is pure (onlysensory or motor) or mixed

How distal lesion is - proximal is worse

17
Q

What is Tinel’s sign?

A

Tap over site of nerve - paraesthesia felt as far distally as regeneration has progressed

18
Q

What is the rule of three for peripheral nerve injury surgery?

A

Immediate surgery within 3 days for clean and sharp injuries
Early surgery within 3 weeks for blunt/contusion injuries
Delayed surgeries 3 months after injury for closed injuries

Nerves (17 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions