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Posterior dynamic stabilization (PDS) devices promise to relieve pain by altering the transmission of any abnormal loads across degenerative discs. These devices can function as an adjunct in the presence of anterior and posterior total disc replacement (TDR). Clinical reports on currently available PDS devices are reviewed and their applicability to TDR is discussed. Products being developed that incorporate posterior TDR prostheses with PDS devices are also reviewed. The PDS devices described can be used in conjunction with anterior TDR at the time of the initial surgery or at a later date. Posterior TDR prostheses used in conjunction with PDS devices will have a role in the marketplace in the future.

neurosurgical focus

Treatment of lumbar spinal stenosis with a total posterior arthroplasty prosthesis: implant description, surgical technique, and a prospective report on 29 patients