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Basic Science
intermediate
X-Type

Peripheral Nerve Injuries

Neuroscience

A 32-year-old man sustains a humeral shaft fracture in a motorcycle accident. Immediately post-injury, he has complete wrist and finger drop with loss of sensation over the first dorsal web space. Six weeks later, there is no clinical or electrophysiological evidence of recovery. Regarding peripheral nerve injuries:

Mark each as TRUE or FALSE

A

The Seddon classification includes neurapraxia (conduction block without axonal damage, full recover...

B

Wallerian degeneration occurs distal to nerve injury and involves axonal breakdown and myelin cleara...

C

All nerve injuries should be explored and repaired immediately; nerve conduction studies are diagnos...

D

Nerve repair principles include tension-free coaptation, fascicular alignment, and use of fine (8-0 ...

E

Electrodiagnostic studies are most useful 3-4 weeks after injury when Wallerian degeneration is comp...

Answer the questions to see explanations

Click T (True) or F (False) for each option