II. Pathophysiology

  1. Forearm compression of the Median Nerve via the pronator teres muscle

III. Differential Diagnosis

IV. Symptoms

  1. Forearm discomfort and ache
  2. Provoked with elbow extension
  3. Paresthesias in the thumb, index and middle finger

V. Signs

  1. Sensory loss over thenar eminence (not present in Carpal Tunnel Syndrome)
  2. Tinel sign absent (contrast with Carpal Tunnel Syndrome)
  3. Phalen maneuver (contrast with Carpal Tunnel Syndrome)
  4. Normal Forearm sensation
  5. Sensation in fingers may also be normal

VI. Management

  1. Modify activity
  2. Consider steroid injection
  3. Consider brief Splinting with elbow at 90 degrees (risk of loss of elbow range of motion)

VII. Course

  1. Anticipate 3-6 month course with therapy

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