Radial nerve lesions

Question 0

Saturday Night Palsy

Answer 0

at spiral groove of humerus from direct pressure against a firm pressure
like when you pass out on arm

Question 1

Crutch Palsy

Answer 1

at axilla

Question 2

Posterior Interosseous Syndrome

Answer 2

• comes off in front of the lateral epicondyle of the humerus
• SUPINATOR mm, btw heads
• compression in canal of FROSHE
• motor nerve
• “WRIST DROP”

Question 3

Cheiralgia Paresthetica

Answer 3

• compression of superficial branch of radial nerve- passes under tendon of BRACHIORADIALIS
• sensory
• pain at dorsum of wrist, thumb and web space
• ## trauma, tight cast, swelling

Question 4

Pathway of Radial Nerve

Answer 4

under clavicle - arm pit - post. arm - lateral arm: branch before SUPINATOR.
Post motor branch- Posterior interosseous nerve; enters Supinator - down lateral radius
Superficial Branch- down posterior forearm to hand

Question 5

Causes or Radial Nerve Lesion

Answer 5

Fracture - spiral/radial groove
Dislocation- head of radius, humeroradial or radioulnar jts.
Post surgery complications
compression

Question 6

Symptoms or Radial Nerve Lesions

Answer 6

altered sensation at posterior arm and hand ( digits 1,2,3and lateral 1/2 of 4)
Wrist drop
proximal elbow injury- both sensory and motor affected
distal elbow injury- only sensory OR motor affected