Question

question 39
which of the following statements about dislocation of the shoulder is true:
○ it most commonly occurs when the head of the humerus slips posteriorly.
○ it can result in injury to the brachial plexus.
○ a common mechanism of injury is falling backwards and landing on a flexed arm.
○ it is an example of an overuse injury.

Explanation:

• For the first option: Shoulder dislocations most commonly occur anteriorly (not posteriorly) when the head of the humerus slips forward, so this is false.
• For the second option: Shoulder dislocation can indeed lead to injury of the brachial plexus due to the forces involved and proximity, so this is true.
• For the third option: A common mechanism is falling on an outstretched (not flexed) arm, so this is false.
• For the fourth option: Shoulder dislocation is a traumatic (not overuse) injury, so this is false.

Answer:

B. It can result in injury to the brachial plexus.