Effect of severity of rod contour on posterior rod failure in the setting of lumbar pedicle subtraction osteotomy (PSO): a biomechanical study.

@article{Tang2013EffectOS,
  title={Effect of severity of rod contour on posterior rod failure in the setting of lumbar pedicle subtraction osteotomy (PSO): a biomechanical study.},
  author={Jessica A. Tang and Jeremi M. Leasure and Justin S. Smith and Jerome M. Buckley and Dimitriy G. Kondrashov and Christopher P. Ames},
  journal={Neurosurgery},
  year={2013},
  volume={72 2},
  pages={
          276-82; discussion 283
        }
}
BACKGROUND Rod failure has been reported clinically in pedicle subtraction osteotomy (PSO) to correct flat back deformity. OBJECTIVE To characterize the fatigue life of posterior screw-rod constructs in the setting of PSO as a function of the severity of rod contour angle. METHODS A modified ASTM F1717 to 04 was used. Rods were contoured to the appropriate angle for the equivalent 20-, 40-, or 60-degree PSO angles. Testing was performed on a mechanical test frame at 400/40 N and 250/25 N… CONTINUE READING

Citations

Publications citing this paper.
SHOWING 1-10 OF 14 CITATIONS

Instability and instrumentation failures after a PSO: a finite element analysis

VIEW 4 EXCERPTS
CITES BACKGROUND & RESULTS
HIGHLY INFLUENCED

Spinal Deformity

VIEW 1 EXCERPT
CITES BACKGROUND

References

Publications referenced by this paper.
SHOWING 1-10 OF 24 REFERENCES

The fatigue life of contoured cobalt chrome posterior spinal fusion rods.

  • Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine
  • 2011
VIEW 1 EXCERPT

Similar Papers

Loading similar papers…