We need you! See something you could improve? Make an edit and help improve WikSM for everyone.

Rule of Nine Test

From WikiSM
Jump to: navigation, search

Other Names

  • Rule-of-nine test
  • Rule of Nine Test



Visual depiction of pressure points
  • Patient is seated or standing
  • The proximal forearm distal to elbow crease is divided into nine pressure points in a 3x3 format
  • Tenderness over two proximal lateral circles (red circles) indicates radial nerve irritation
  • Tenderness over pressure points of 5 and 6 (yellow circles) indicates proximal median nerve irritation
  • Three medial points are control area.



See Also


  1. Loh, Y., Lam, W., Stanley, J., & Soames, R. (2004). A New Clinical Test for Radial Tunnel Syndrome—The Rule-of-Nine Test: A Cadaveric Study. Journal of Orthopaedic Surgery, 83–86.
Created by:
John Kiel on 19 November 2019 01:48:55
Last edited:
19 May 2023 19:23:24