Pollock Test

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Pollock Test

Demonstration of Pollock's Test

• Pollock Sign
• Pollock’s Test
• Pollock’s Sign
• Nail File Sign
• Pollock Nail File Sign

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Purpose

• Evaluate Cubital Tunnel and Ulnar Nerve as a cause of elbow pain
• First described by Pollock in 1919

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Description

• Ask the patient to place their hand in a supinated position on a flat surface, with all fingers extended
• Isolate the DIP joint of the 4th, 5th digits by restricting motion to the MP and proximal interphalangeal (PIP) joints.
• Ask the patient to flex while applying a resistive force.
• Observe the patient’s ability to flex the DIP joint of the little finger against resistance.
• Positive test
  • Inability to flex the DIP joints of the ring and little fingers.

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Pathology

• Cubital Tunnel Syndrome
• Ulnar Nerve Injury

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Evidence

• Unknown

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See Also

• Elbow Pain (Main)
• Elbow Anatomy (Main)
• Physical Exam Elbow

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