Nerve conditions

Question 1

Median nerve low lesion

Answer 1

n all thenar muscles palsy except ADD Pol.

Question 2

Median Nerve

Answer 2

Origin- Brachial plexus C5-T1 roots-medial and lateral cords

Question 3

Radial nerve low lesion

Answer 3

wrist extensors are not affected, only fingers and thumb extension at MCPJ level are affected- wrist
drop

Question 4

radial nerve high lesion

Answer 4

triceps, Wrist extensors( ECRL/B), extensors of the fingers at MCPJ level and thumb extension/abduction are
not working= wrist and finger drop

Question 5

wasting of hypothenar muscles

Flattening of Metacarpal arch, Abduction of little finger

wasting of intrinsic muscles

Clawing of the fingers

wasting of adductor pollicis

Answer 5

Ulnar nerve pathology

Question 6

Fromet’s sign

Answer 6

Failure of adductor pollicis –> ulnar nerve pathology

Question 7

Jeanne’s Sign

Answer 7

Thumb MP hyperextension with key pinch or gross grip

Question 8

Wartenberg’s Sign

Answer 8

Inability to adduct the extended little finger

Question 9

Pollock’s Sign

Answer 9

Inability to flex the DIP of the ring and small fingers in high palsies

Question 10

Carpel tunnel syndrome

tests for median nerve

Answer 10

tinel’s sign

phalens sign

median compression test

Question 11

complications of surgery for carpal tunnel syndrome

Answer 11

1]. Complex Regional Pain Syndrome
2]. Tender hypertrophic scar pillar pain
3]. neuroma in palmar branch
4]. tenosynovitis / tendon adhesions
5]. bowstringing of tendons

Question 12

Cubital tunnel syndrome

Answer 12

Ulnar nerve entrapment about the level of the elbow

caused by...
1]. At elbow: o Cubitus Valgus ○ Trauma
o Bony spurs ○ Tumours
2]. Proximal 8cm by ‘Arcade Of Struthers’ thin aponeurotic band 
 extending From Medial Head Of Triceps to the medial 
 Intermuscular Septum; 
3]. O s b o r n e L i g a m e n t 
4 ] Distal by hypertrophied FCU

Question 13

cubital tunnel syndrome

places of wasting

Answer 13

1st dorsal Interosseus + hypothenars + ulnar s i d e o f FDP & FCU)