Pain, paresthesia, restricted mobility, decreased grip strength, fatigue in affected hand, inability to use fourth and fifth digits best describe which illness that is caused by in... Pain, paresthesia, restricted mobility, decreased grip strength, fatigue in affected hand, inability to use fourth and fifth digits best describe which illness that is caused by injury or irritation of a nerve in the tunnel between the hook of the hamate and pisiform?
Understand the Problem
The question describes a set of symptoms—pain, paresthesia, restricted mobility, decreased grip strength, fatigue, and impaired use of the fourth and fifth digits—resulting from sustained pressure on a nerve within a specific anatomical tunnel. The question asks to identify the illness that matches this description.
Answer
Ulnar Tunnel Syndrome (Guyon's Canal Syndrome).
The symptoms and anatomical location described best indicate Ulnar Tunnel Syndrome, also known as Guyon's Canal Syndrome, which involves compression of the ulnar nerve as it passes through the Guyon's canal at the wrist, formed by the hook of the hamate and pisiform bones.
Answer for screen readers
The symptoms and anatomical location described best indicate Ulnar Tunnel Syndrome, also known as Guyon's Canal Syndrome, which involves compression of the ulnar nerve as it passes through the Guyon's canal at the wrist, formed by the hook of the hamate and pisiform bones.
More Information
Ulnar Tunnel Syndrome is less common than Carpal Tunnel Syndrome. Cyclists can be at risk for Ulnar Tunnel Syndrome due to prolonged pressure on the handlebar.
Tips
It is important to differentiate this from Cubital Tunnel Syndrome, which is compression of the ulnar nerve at the elbow.
Sources
- Ulnar Tunnel Syndrome of the Wrist - OrthoInfo - AAOS - orthoinfo.aaos.org
- Guyon Canal Syndrome - StatPearls - NCBI Bookshelf - ncbi.nlm.nih.gov
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