Nerve Injury (Distal Ulnar Nerve)

Nerve Injury (Distal Ulnar Nerve) affects the ulnar nerve, which runs along the arm and controls movement and sensation in parts of the hand. This injury typically impacts the ring and little fingers, causing symptoms like numbness, tingling, and weakness in these areas. The ulnar nerve is important for fine motor skills, so damage can make tasks like gripping or pinching difficult. The injury usually occurs due to trauma, compression, or repetitive strain near the wrist or elbow. This condition involves the nervous system and primarily affects hand function and sensation.

Nerve Injury (Distal Ulnar Nerve) is a peripheral neuropathy characterized by damage to the ulnar nerve distal to the elbow, often at the wrist or Guyon's canal. The injury results from trauma, compression, or repetitive microtrauma leading to axonal injury or demyelination. Clinically, it manifests as sensory loss in the ulnar distribution of the hand and motor weakness of intrinsic hand muscles, especially those controlling finger abduction and adduction. This injury impairs fine motor control and grip strength, with hallmark signs including claw hand deformity in severe cases. The condition is significant due to its impact on hand dexterity and quality of life. Diagnosis and management require understanding the nerve's anatomy and injury mechanism.