Site of injury
One region on upper trunk of Brachial plexus where 6 nerves meet (Erb’s point)
Causes
Undue separation of head from the shoulder due to –
- Birth injury
- Fall on the shoulder
- During anaesthesia
Nerve Roots
C5-C6
Muscles involved
Biceps brachii, Deltoid, Brachialis, Brachioradialis, Supraspinatus, Infraspinatus & Supinator (SBI Bank South Delhi Branch)
Deformity
Porter’s tip/ Policeman’s tip/ Waiter’s tip hand
Disability
- Abduction & Lateral rotation of the arm and shoulder joint
- Extension and supination of the forearm
- Biceps and supinator jerks are lost
- Loss of sensation over the lower part of Deltoid region
– Jainam Shah