Ulnar

Question 1

ulnar motor

Answer 1

forearm: FCU + FDP
hand:Hypothenar muscles.
Adductor pollicis.
The third and fourth lumbrical muscles.
Dorsal interossei.
Palmar interossei.

Question 2

ulnar sensory

Answer 2

split ring finger back and front

Question 3

ulnar brachial supply

Answer 3

C8-T1

Question 4

ulnar anatomy

Answer 4

elbow: behind medial epicondyle, ulnar groove proximally
wrist: above flexor retinaculum in Guyon’s canal

Question 5

ulnar injury elbow

Answer 5

c: fracture of medial epicondyle, golfer elbow = medial epicondylitis, cubital tunnel entrapment
cubital tunnel syndrome
sx: medial wasting forearm, weak flexion 4th/5th finger, can’t abduct 5th finger, wasting hypothenar/interossei
claw hand
Froment sign = compensation thumb
ulnar paradox = less clawing at elbow due to FDP weakness (FDP goes through carpal tunnel so not affected at wrist)

Question 6

ulnar injury wrist

Answer 6

c: laceration, aneurysm ulnar artery, synovial inflammation, trauma
Tinel, Phalen

Question 7

ulnar ix

Answer 7

emg, uss cubital tunnel, xray

Question 8

ulnar tx

Answer 8

splint overnight elbow extension, activity modification
NSAID
nerve decompression