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BIOMECHANICAL EVALUATION OF TRANSPEDICULAR SPINAL IMPLANTS İN BURST FRACTURES

  • F. KORKUSUZ
  • G. BİRLİK
  • O. KOYUNCUOĞLU
  • N. AKKAŞ

J Turk Spinal Surg 1994;5(4):84-86

Transpedicular implarıts are effectively used in the treatment of spinal burst fractures. The biomechanical proficiency of the Alıcı spinal instrument and the TSRH spinal instrument under axial loads were assessed in a comparative study. İn vivo caif spines were used in these experiments. The burst fracture was simulated by a rubber spacer with a known density. The Alıcı spinal instrument is significantly stiffer than the TSRH instrument. On the other and, the TSRH system has almost no effect in stabilizing the fractured vertebral level when compared to the control group. These measures are true for the possible average axial load (450 N) that is suspected to affect a fractured spine of a standing human. Further studies are essential to evaluate the optimum strength of the above mentioned spinal implants under torsion and flexion-compression loads. To use rubber spacers to simulate burst fractures seems promising.

Keywords: Spine, Biomechanics, Burst Fracture, Transpedicutar Spinal Implant.