Mnemonic
Axillary Nerve Lesion - Regimental Badge
A memory aid for the signs of an axillary nerve lesion.
Expansion
Deltoid weakness and regimental badge sensory loss
Expansion
- Motor - weakness of deltoid (arm abduction from 15 to 90 degrees) and teres
minor
- Sensory - loss over the “regimental badge” area on the upper lateral arm
- Cause - surgical neck of humerus fracture or anterior shoulder dislocation
- Always check the regimental badge sensation after a shoulder dislocation