Jeanne’s Sign

Published July 2, 2026 Read time 1 min read Readers 1
Jeanne sign

What is the "Jeanne's Sign" used for?

  • Ulnar nerve motor weaknes

How to perform the "Jeanne's Sign"?

  • Ask patient to demosntrate key pinch

What is the positive result?

  • Positive finding if patients first MCP joint is hyperextended

References