Wrist & Hand Tendon Injury Evidence: confirmed

Elson Test Special Test

Orthopedic Physical Examination & Clinical Assessment Guide

Elson Test Orthopedic Special Test

What is it used for?

  • Diagnosing Central Slip Injury (precursor to Boutonniere Deformity).

How to Perform

  • Position: Finger flexed 90° over table edge.
  • Action: Patient tries to extend the PIP joint against resistance.

Interpretation of Results

  • Positive Test: Weak PIP extension, but the DIP joint goes rigid/extends (lateral bands pull tight).
  • Normal: Strong PIP extension, DIP remains loose.

References