Child health · UKMLA & AKT
Radial nerve palsy in children
A free high-yield preview for the UKMLA Applied Knowledge Test, covering how to recognise this condition. The full SA Note notes add investigations, management and complications, with practice questions on this topic.
Key high-yield points
- Radial nerve arises from posterior cord (C5-C8, T1), winds around spiral groove of humerus - key site of vulnerability
- Divides at lateral epicondyle into: superficial radial nerve (sensory only - dorsal lateral hand/digits) and posterior interosseous nerve (PIN) (motor only - wrist and finger extensors)
- Isolated PIN injury = motor loss WITHOUT sensory deficit + wrist extension partially preserved (extensor carpi radialis longus supplied above PIN branch point)
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