Peripheral Nerve Injuries - p. 260-262

Question 1

the existence of two separate lesions along the same nerve create more severe symptoms than if only one lesion existed

Answer 1

double crush syndrome

Question 2

isolated nerve lesion, associated with trauma and entrapment

Answer 2

mononeuropathy

Question 3

abnormal growth of nerve cells asosociated conditions include vasculitis, AIDS, and amylodosis

Answer 3

neuroma

Question 4

impairment of dysfunction of peripheral nerves, associated conditions include diabetic peripheral neruopathy, trauma, alcoholism

Answer 4

peripheral neuropathy

Question 5

diffuse nerve dysfunction that is symmetrical and typically secondary to pathology and not trauma; associated conditions include Guillain-Barre syndrome, peripheral neropathy, use of neurotoxic drugs and HIV

Answer 5

polyneuropahty

Question 6

Degeneration that occurs distally, sepcfically to the myelin sheath and axon

Answer 6

Wallerian degeneration

Question 7

What are the grades of acute nerve injury from mildest to most severe?

Answer 7

Neurapraxia - mild form of injury
Axonotmesis - more severe
Neurotmesis - most severe form

Question 8

In what grade of peripheral nerve injury is the axon, myelin, CT components all damaged or transected?

Answer 8

Neurotmesis

Question 9

In what grade of peripheral nerve injury is damage irreversible with no possibility of regernation?

Answer 9

Neurotmesis

Question 10

With surgical reattachment of transected nerves how fast do axons regenerate and does motor or sensory recover first?

Answer 10

one milimeter per day

Sensory recovers first

Question 11

With axonotmesis how fast can the distal site of lesion regnerate?

Answer 11

one milimeter per day

Question 12

How long does it take for complete recovery from neurapraxia?

Answer 12

4-6 weeks