Ulnar nerve palsy Flashcards
1
Q
Pincer grip tests
A
Adductor policis
2
Q
Which nerve innervates adductor policis?
A
Ulnar nerve
3
Q
What is Froment’s sign?
A
Flexion of thumb in ulnar nerve palsy on attempted pincer grip
produces O of frOmen’ts sign
because long flexors are supplied by median nerve–> act when adductor policis is weak
4
Q
What can cause ulnar nerve damage?
A
Medial epicondyle fracture
5
Q
What are the four signs of ulnar nerve palsy?
A
Sensory loss over fifth finger and ulnar half of fourth finger
Weakness and wasting of the first dorsal interosseous
Weakness of pincer grip
Partial claw hand - weakness of medial lumbricals
