Ulnar nerve dysfunction

Alternative names:

neuropathy - ulnar nerve

Symptoms:

• sensation changes
  • of the 4th or 5th fingers
  • of the hand below the 4th and 5th fingers
  • numbness, decreased sensation
  • tingling, burning sensation
  • pain
  • abnormal sensations

• weakness of the hand

Signs and tests:

Neuromuscular examination of the hand and wrist indicates Ulnar nerve dysfunction. There may be weakness of wrist and hand flexion and difficulty moving the fingers. Severe cases may display wasting of the hand muscles or characteristic "claw-like" deformity. A detailed history may be needed to determine the possible cause of the neuropathy.

Tests that reveal ulnar nerve dysfunction may include an EMG (a recording of electrical activity in muscles) and nerve conduction tests. Tests are guided by the suspected cause of the dysfunction, as suggested by the history, symptoms presented, and pattern of symptom development. They may include various blood tests, X-rays, scans, or other tests and procedures.