Which activity is most likely to reproduce symptoms associated with Guyon's canal syndrome?

Which activity is most likely to reproduce symptoms associated with Guyon's canal syndrome?

• A. Overhead weight lifting
• B. Prolonged wrist flexion and ulnar deviation
• C. Typing on a keyboard
• D. Playing a wind instrument

Answer: (B)

Guyon's canal syndrome, also known as ulnar nerve entrapment at the wrist, occurs when the ulnar nerve is compressed as it passes through Guyon's canal, a space located between the pisiform and hook of the hamate bones. Activities that involve prolonged wrist flexion and ulnar deviation can increase the pressure on the ulnar nerve within this canal, leading to symptoms such as numbness, tingling, and weakness in the hand, particularly affecting the ring and little fingers. In this context, prolonged wrist flexion and ulnar deviation directly positions the wrist and hand in a way that exacerbates the compression of the ulnar nerve, making it the most likely activity to reproduce the symptoms associated with Guyon's canal syndrome. Other activities may involve some wrist movement, but they do not specifically create the same kind of sustained position that would lead to increased nerve compression in the same manner.

Guyon's canal syndrome, also known as ulnar nerve entrapment at the wrist, occurs when the ulnar nerve is compressed as it passes through Guyon's canal, a space located between the pisiform and hook of the hamate bones. Activities that involve prolonged wrist flexion and ulnar deviation can increase the pressure on the ulnar nerve within this canal, leading to symptoms such as numbness, tingling, and weakness in the hand, particularly affecting the ring and little fingers.

In this context, prolonged wrist flexion and ulnar deviation directly positions the wrist and hand in a way that exacerbates the compression of the ulnar nerve, making it the most likely activity to reproduce the symptoms associated with Guyon's canal syndrome. Other activities may involve some wrist movement, but they do not specifically create the same kind of sustained position that would lead to increased nerve compression in the same manner.