Stability and Load Sharing Characteristics of a Posterior Dynamic Stabilization Device

Stability and Load Sharing Characteristics of a Posterior Dynamic Stabilization Device

BACKGROUND Lumbar interbody fusion is a common treatment for a variety of spinal pathologies. It has been hypothesized that insufficient mechanical loading of the interbody graft can prevent proper fusion of the joint. The purpose of this study was to evaluate the mechanical stability and anterior column loading sharing characteristics of a posterior dynamic system compared to titanium rods in ...

Changes in Center of Rotation and Load Sharing Characteristics Following Posterior Dynamic Stabilization in the Lumbar Spine

Changes in Center of Rotation and Load Sharing Characteristics Following Posterior Dynamic Stabilization in the Lumbar Spine Yoon-Ho Ahn1, Kyung-Woo Park2, Wen-Ming Chen3, Jae-Won Lee1, Duk-Young Jung4, Sung-Jae Lee1 1Department of Biomedical Engineering, Inje University, Gimhae, South Korea; 2Department of Neurosurgery, Kwang-Hye Spine Hospital, Seoul, South Korea; 3Division of Bioengineering,...

The Comprehensive Biomechanics and Load-Sharing of Semirigid PEEK and Semirigid Posterior Dynamic Stabilization Systems

Alternatives to conventional rigid fusion have been proposed for several conditions related to degenerative disc disease when nonoperative treatment has failed. Semirigid fixation, in the form of dynamic stabilization or PEEK rods, is expected to provide compression under loading as well as an intermediate level of stabilization. This study systematically examines both the load-sharing characte...

A Short History of Posterior Dynamic Stabilization

Interspinous spacers were developed to treat local deformities such as degenerative spondylolisthesis. To treat patients with chronic instability, posterior pedicle fixation and rod-based dynamic stabilization systems were developed as alternatives to fusion surgeries. Dynamic stabilization is the future of spinal surgery, and in the near future, we will be able to see the development of new de...

282 In vitro Comparison of One and Two Level Posterior Dynamic Stabilization Device