Wartenbergs Sign

Other Names

Positive wartenberg's sign on the right

(a) Froment's Sign, (b) Wartenberg's Sign

• Wartenberg's Sign
• Finger Escape Sign
• Digiti Quinti Sign

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Purpose

• A sign suggesting neuropathy of the palmer interosseus muscle

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Description

• The patient is seated or standing
• Examiner evaluates affected hand
• A positive sign is
  • Slightly greater abduction of the fifth digit, due to paralysis of the abducting palmar interosseous muscle
  • There is also unopposed action of the radial innervated extensor muscles (digiti minimi, digitorum communis )

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Pathology

• Ulnar Nerve Injuries including:
  • Guyon Canal Syndrome
  • Cubital Tunnel Syndrome
• Cervical Myelopathy
• Upper Motor Neuron Disease

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Evidence

• Unknown

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See Also

• Wrist Pain (Main)
• Physical Exam Wrist

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