Tensile properties of the superior glenohumeral and coracohumeral ligaments

  • Boardman N
  • Debski R
  • Warner J
 et al. 
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Abstract

Recent evidence has shown that the superior glenohumeral ligament (SGHL) and coracohumeral ligament (CHL) are important static stabilizers. To clarify the function of these two ligaments, we studied their tensile properties with bone-ligament-bone complexes from fresh-frozen shoulders, 10 SGHLs and 10 CHLs. Each ligament's cross-sectional area was measured, and uniaxial tensile testing of each complex was performed. The stiffness, ultimate load, percent elongation, and energy absorbed to failure of each bone-ligament-bone complex were derived from its load-elongation curve. The cross-sectional area of the coracohumeral ligament was significantly greater than that of the superior glenohumeral ligament at their midportions (CHL, 53.7±3.2 mm2 vs. SGHL, 11.3±1.6 mm2, p

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Authors

  • N. Douglas Boardman

  • Richard E. Debski

  • Jan J.P. Warner

  • Emin Taskiran

  • Lisa Maddox

  • Andreas B. Imhoff

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