Paralysis - PERIPHERAL NERVES
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The classification of peripheral nerve injuries can again be easily divided into 3 main groups according to the 'Rule of 3'. This is fracturees and dislocations, direct wounds and other causes.
i. Fractures and dislocations -
These include dislocations of the:
a. Hip and pelvis - sciatic nerve
b. Knee - common peroneal nerve
c. Ankle - posterior tibial nerve
d. Shoulder - axillary nerve
e. Elbow - radial, median or ulnar nerves
f. Wrist - median nerve
ii. Direct wounds - These include penetrating gunshot wounds and wounds due to knives and other instruments. Open wounds and compound fractures are in fact a much commoner cause of division of nerves.
iii. Other causes of peripheral nerve paralysis - These include diabetes, leprosy, and peripheral neuritis due to vitamin B deficiency.
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