Upper extremity syndromes

Question 1

Erb-Duchenne palsy

Answer 1

AKA Waiter’s tip
Seen: upper trunk (C5-C6) infant during delivery
Finding: limb hanging, medially rotated, forarm pronated (loss of bicep)

Question 2

Klumpke’s palsy
and thoracic outlet syndrome:
Cause

Answer 2

Inferior trunk

Cervical rib can compress subclavian artery and inferior trunk, resulting in thoracic outlet syndrome

Question 3

Klumpke’s palsy
and thoracic outlet syndrome:
Presentation

Answer 3

Atrophy of thenar and hypothenar
Atrophy of interosseus
Sensory deficient on the medial side of forearm and hand

Disappearance of radial pulse upon moving the head toward the ipsilateral side