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Description / Abstract:
These test methods cover the materials and methods for the
static and fatigue testing of spinal implant assemblies in a
vertebrectomy model. The test materials for most combinations of
spinal implant components can be specific, depending on the
intended spinal location and intended method of application to the
spine.
These test methods are intended to provide a basis for the
mechanical comparison among past, present, and future spinal
implant assemblies. They allow comparison of spinal implant
constructs with different intended spinal locations and methods of
application to the spine. These test methods are not intended to
define levels of performance, since sufficient knowledge is not
available to predict the consequences of the use of a particular
device.
These test methods set out guidelines for load types and methods
of applying loads. Methods for three static load types and one
fatigue test are defined for the comparative evaluation of spinal
implant assemblies.
These test methods establish guidelines for measuring
displacements, determining the yield load, and evaluating the
stiffness and strength of the spinal implant assembly.
Some spinal constructs may not be testable in all test
configurations.
The values stated in SI units are to be regarded as standard. No
other units of measurement are included in this standard.
This standard does not purport to address all of the safety
concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and
health practices and determine the applicability of regulatory
limitations prior to use.