Journal of Spine

Dhruv B. Pateder

Publications

• Research Article
  Comparative Modes of Failure: Trans-Sacral Rod Vs. Pedicle Screw for L5/ S1 Fusion - A Biomechanical Analysis
  Author(s): Eric O. Klineberg, Mark Kayanja, Dhruv B. Pateder and Isador LiebermanEric O. Klineberg, Mark Kayanja, Dhruv B. Pateder and Isador Lieberman
  
  Introduction: The L5-S1 trans-sacral axial rod represents a less invasive approach to spinal fixation. No study to date has biomechanically tested this device to failure to compare it to the more common pedicle screw instrumentation in the human cadaveric spine. Methods: Seven human lumbar spines (L4-pelvis) with an average t score of -3.5, were randomly divided into a pedicle screw construct [4] and axial trans-sacral rod [3]. The spines were then tested in a custom built platform to determine the effect of a pure flexion moment. Testing was performed with six cycles (10 N/m), and final destructive testing (maximum 50 N/m). Results:The pedicle screw construct has similar motion at the L5/S1 junction compared to the trans-sacral rod construct in cyclical testing. With destructive testing, no significant motion differen.. Read More»
  DOI: 10.4172/2165-7939.1000107

  Abstract PDF