Study Design. A nonlinear three-dimensional finite element model of the osteoligamentous
L3–L4 motion segment was used to predict changes in posterior element loads as a function …

Prior to implantation, medical devices are subjected to rigorous testing to ensure safety and
efficacy. A full battery of testing protocols for implantable spinal devices may include many …

Study Design. In vitro biomechanical study. Objective. To quantify the effects of uncinatectomy
on cervical motion after total disc replacement (TDR). Summary of Background Data. The …

✓The clinical success of lumbar spinal fusion varies considerably, depending on techniques
and indications. Although spinal fusion generally helps to eliminate certain types of pain, it …

Study Design. Biomechanical study using human cadaver spines. Objective. To
characterize kinematics of cervical spines implanted with total disc replacement (TDR) at 2-levels …

Object. The goal of this study was to evaluate the comparative efficacy of three commonly
used anterior thoracolumbar implants: the anterior thoracolumbar locking plate (ATLP), the …

… Dooris also reports on testing of alumina ball and alumina socket lumbar disc bearing
components to 10 million cycles in flexion-extension alone. A static compressive load of 700 N …

Object. The authors conducted a study to determine if the rigidity supplied to the spine by
posterior placement of the Ray threaded fusion cage (TFC) is further enhanced by the …

The biological effect of wear of articulating surfaces is a continued concern with large joint
replacements and, likewise, of interest for total disc replacements. There are a number of …

Artificial intervertebral discs attempt to address some of fusion's shortcomings, including
accelerated degeneration of spinal segments adjacent to the affected level. This dissertation …