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Median Nerve Lesion

Examination

• Observation
  • wasted muscles
    • thenar eminence
• Weakness
  • Lumbricals (lateral 2)
  • Opponens pollicis
  • Abductor pollicis brevis
  • Flexor pollicis brevis
• Sensory loss
  • Lateral 3.5 digits
  • +/- palm
• Other tests
  • Tinel's sign
  • Phalens Test
  • Carpal Tunnel scar at wrist

Causes

• Carpal Tunnel Syndrome
• Entrapment at Elbow (Rheumatoid arthritis)