Question

A patient comes to the ER complaining of numbness in the posterior part of his left upper limb. Physical exam shows inability to extend his left arm. He started developing these symptoms after falling and hitting his left shoulder when playing basketball. He is diagnosed with a traumatic injury of the left brachial plexus. Which structure is more likely to be injured?

Answer 1

Answer:

The structure more likely to be injured is the axillary nerve or circumflex nerve

Explanation:

Because an axillary nerve injury is charcaterised by trauma to the axillary nerve, from either a compressive force, traction injury following anterior dislocation of the shoulder, or a forced ABDuction movement of the shoulder joint.