Biology
Peripheral Nerve Injury: Classification and Repair Strategies
Quick fact
The Seddon classification, introduced in 1943, is still used today to grade nerve injuries into three types, with recovery potential ranging from complete (neurapraxia) to hopeless without surgery (neurotmesis).
Why this is interesting
When you cut your finger, you might lose feeling temporarily—but sometimes the loss is permanent. Why do some nerve injuries heal on their own while others require surgery?