P113. Analysis of Textured End Plates and Bone Ongrowth in Retrieved Charité Total Disc Replacements

Kurtz, Steven M.; Ooij, André van; Ross, Raymond Samuel; Ciccarelli, Lauren; Villarraga, Marta L.

doi:10.1016/j.spinee.2006.06.322

Cited by 1 publication

(1 citation statement)

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“…Bone on-growth could theoretically complicate revision. In an abstract presented at the 2006 Spine Arthroplasty Meeting, 76 researchers investigated the failure modes, bone-implant interface, and extent of remaining CaP coating in retrieved Charité TDRs with textured endplates. Eight textured endplates from 4 explanted TDRs were studied following 3– 6 years in vivo.…”

Section: Lumbar Spine Tdrsmentioning

confidence: 99%

Retrieval analysis of motion preserving spinal devices and periprosthetic tissues

Kurtz¹,

Steinbeck²,

Ianuzzi³

et al. 2009

SAS Journal

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This article reviews certain practical aspects of retrieval analysis for motion preserving spinal implants and periprosthetic tissues as an essential component of the overall revision strategy for these implants. At our institution, we established an international repository for motion-preserving spine implants in 2004. Our repository is currently open to all spine surgeons, and is intended to be inclusive of all cervical and lumbar implant designs such as artificial discs and posterior dynamic stabilization devices. Although a wide range of alternative materials is being investigated for nonfusion spine implants, many of the examples in this review are drawn from our existing repository of metal-on-polyethylene, metal-on-metal lumbar total disc replacements (TDRs), and polyurethane-based dynamic motion preservation devices. These devices are already approved or nearing approval for use in the United States, and hence are the most clinically relevant at the present time. This article summarizes the current literature on the retrieval analysis of these implants and concludes with recommendations for the development of new test methods that are based on the current state of knowledge of in vivo wear and damage mechanisms. Furthermore, the relevance and need to evaluate the surrounding tissue to obtain a complete understanding of the biological reaction to implant component corrosion and wear is reviewed.

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Section: Lumbar Spine Tdrsmentioning

confidence: 99%