Wear Properties of a Pyrolytic Carbon Intel-vertebral Disc Replacement

摘要

No significant differences or visible pyrocarbon particles were found in evaluations of all six samples from 0 cycles to 10 million cycles of wear simulation. CMM scans confirmed no significant changes in surface morphology following 10 millions cycles. Thus, there is no detectable wear of the Regain™ lumbar nuclear disc replacement after 10 million cycles of articulation in a worst-case clinical scenario. Furthermore, this study establishes a unique process for the wear testing, isolation, and evaluation of pyrolytic carbon implants on bone.