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The interosseous membrane of the forearm: anatomy and function

J R Skahen1, A K Palmer, F W Werner

  • 1Department of Orthopedic Surgery, State University of New York Health Science Center, Syracuse 13210, USA.

The Journal of Hand Surgery
|February 21, 1998
PubMed

Insights

The forearm

Area of Science:

  • Anatomy
  • Biomechanics
  • Orthopedics

Background:

  • The interosseous membrane is a crucial forearm structure.
  • Its detailed anatomy and biomechanical properties are not fully understood.

Purpose of the Study:

  • To investigate the detailed anatomy of the interosseous membrane.
  • To analyze strain distribution within the central band of the interosseous membrane.

Main Methods:

  • Dissection of 20 preserved cadaveric forearm specimens.
  • Analysis of the central band's strain in 6 specimens under varying conditions.

Main Results:

  • The interosseous membrane is a complex structure with central, accessory, and proximal bands.
  • Maximum strain in the central band occurs during neutral forearm rotation.
  • Radial head removal increases strain and shifts peak strain to pronation.

Conclusions:

  • The central band is the most dominant and consistent component of the interosseous membrane.
  • Forearm rotation and radial head integrity significantly influence interosseous membrane strain patterns.

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