Classification of posterior dynamic stabilization devices

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✓Numerous new posterior dynamic stabilization (PDS) devices have been developed for the treatment of disorders of the lumbar spine. In this report the authors provide a classification scheme for these devices and describe several clinical situations in which the instrumentation may be expected to play a role. By using this classification, the PDSs that are now available and those developed in the future can be uniformly categorized.

Abbreviations used in this paper:FDA = Food and Drug Administration; PDS = posterior dynamic stabilization; PEEK = polyetheretherketone; TFAS = Total Facet Arthroplasty System; TOPS = Total Posterior Motion Preservation System.

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Article Information

Address reprint requests to: Michael Y. Wang, M.D., Department of Neurosurgery, University of Southern California, 1200 North State Street, Suite 5046, Los Angeles, California 90033. email:

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