QuestionSBA
QuestionChoice
Shoulder dystocia is a risk factor for upper brachial plexus injuries as it is stretched due to traction when trying to deliver the stuck infant. Erb's palsy presents with the affected limb being held internally rotated, adducted and extended.
10027846
a
Erb's palsy
QuestionChoice
The axillary nerve is a terminal nerve of the brachial plexus, so does not arise until after the plexus has passed through the axilla. In this case, the actual brachial plexus is more likely to be injured as the neck is being stretched during delivery.
10027848
c
Axillary nerve palsy
QuestionChoice
The median nerve is a terminal nerve of the brachial plexus, so does not arise until after the plexus has passed through the axilla. In this case, the actual brachial plexus is more likely to be injured as the neck is being stretched during delivery.
10027849
d
Median nerve palsy
QuestionChoice
This is a lower brachial plexus injury which is caused when the lower part of the brachial plexus is stretched e.g. catching onto a tree when falling from height. In this case, the upper brachial plexus injury is more likely as the neck is where traction is applied to try and deliver the baby.
10027847
b
Klumpke's palsy
QuestionChoice
The musculocutaneous nerve is a terminal nerve of the brachial plexus, so does not arise until after the plexus has passed through the axilla. In this case, the actual brachial plexus is more likely to be injured as the neck is being stretched during delivery.
10027850
e
Musculocutaneous nerve palsy
Concept
Chapter
2693
3864
Brachial plexus injuries
Topic
141
Neurology
17967
A woman is in the maternity centre giving birth. It has been an uncomplicated pregnancy and delivery so far. However, the baby now seems to be stuck. The registrar tells you this is shoulder dystocia as the infant's shoulder is behind the maternal pubic symphysis despite delivery of the head.

Which neurological problem is the infant most at risk of?
a