Melbourne Sessions

Question 1

Classify Peripheral Nerve Injury

Answer 1

Seddon: Neuropraxia, Axonotmesis, Neurotmesis

Sunderland: 5 types
Types II-IV are different severities of axonotmesis

Question 2

What is the cause of being unable to make the OK sign?

Answer 2

Anterior Interroseous Nerve Injury

Anterior Interroseous Nerve supplies - FDP, FPL, Pronator Quadratus

Question 3

What is Wartenberg’s sign and why does it occur?

Answer 3

Ulnar nerve injury - little finger held in abduction at rest due to unopposed action of extensor digiti minimi
Gets caught in pockets

Question 4

What muscles are innervated by radial nerve proper? (i.e. not by posterior interroseous nerve)

Answer 4

Triceps
Brachioradialis
Anconeous

Question 5

What’s a Gilliat-Sumner hand?

Answer 5

Wasting of thenar and hypothenar eminence
Caused by compression of lower trunk of brachial plexus
eg by cervical rib

Question 6

What median nerve branch can you injure in carpal tunnel surgery?

Answer 6

Recurrent thenar branch

Question 7

What are sites of compression of median nerve?

Answer 7

Carpal tunnel

can be compressed at elbow additionally