Wrist & Hand Nerve Compression Evidence: confirmed

Jeanne's Sign Special Test

Orthopedic Physical Examination & Clinical Assessment Guide

Jeanne's Sign Orthopedic Special Test

What is it used for?

  • Diagnosing Ulnar Nerve Paralysis.

How to Perform

  • Action: Perform a key pinch (similar to Froment's Sign).

Interpretation of Results

  • Positive Test: Hyperextension of the Thumb MCP joint.
  • Why: Loss of stabilizing force from the Adductor Pollicis.

References