Stability of the human spine: a biomechanical study

P.J.M. Scholten, A.G. Veldhuizen, H.J. Grootenboer

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The influences of curvatures and of physical properties on the mechanical stability of the spine were analysed by means of a three-dimensional, geometrical, nonlinear biomechanical model. According to the model, the initial buckling load decreases with increasing lordotic and kyphotic curvatures. When the body weight is taken into account as a load distributed along the whole spine, the calculated initial buckling load is twice the value that it is in the case of a single concentrated load acting at the top of the spine. Applying the large deflection theory, no relation is found between the increased slenderness of a spine and a ‘buckled’ configuration of a scoliotic spine.
Original languageUndefined
Pages (from-to)27-33
JournalClinical biomechanics
Issue number1
Publication statusPublished - 1988


  • Biomechanics
  • Spine
  • Stability
  • IR-70290
  • Idiopathic scoliosis

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