Elastic and viscoelastic properties of the human pubic symphysis joint: Effects of lateral impact loading

Academic Article


  • The human pelvis is susceptible to severe injury in vehicle side impacts owing to its close proximity to the intruding door and unnatural loading through the greater trochanter. Whereas fractures of the pelvic bones are diagnosed with routine radiographs (x-rays) and computerized tomography (CT scans), non-displaced damage to the soft tissues of pubic symphysis joints may go undetected. If present, trauma-induced joint laxity may cause pelvic instability, which has been associated with pelvic pain in non-traumatic cases. In this study, mechanical properties of cadaveric pubic symphysis joints from twelve normal and eight laterally impacted pelves were compared. Axial stiffness and creep responses of these isolated symphyses were measured in tension and compression (perpendicular to the joint). Bending stiffness was determined in four primary directions followed by a tension-to-failure test. Loading rate and direction correlated significantly (p
  • Authors

    Published In

    Digital Object Identifier (doi)

    Author List

  • Dakin GJ; Arbelaez RA; Molz IV FJ; Alonso JE; Mann KA; Eberhardt AW
  • Start Page

  • 218
  • End Page

  • 226
  • Volume

  • 123
  • Issue

  • 3