Product Category: Spinal Implants , Historical Products
By Product Type: Artificial Disc (TDR)
By Procedure Type: Lumbar Disc Replacement
Insertion Approach: Anterior approach
TDR Characteristics: Spike/Tooth based
Disc Articulation Characteristics: Metal-on-Poly
By Location/Approach: Anterior Lumbar
By System Type: Degenerative , Motion Preservation
By Material: Titanium Plasma Sprayed , HA (Hydroxyapatite) Coated , Cobalt Chrome (CoCr)
The Charité Lumbar Artificial Disc replacement TDR by DePuy was the first US approved and most widely studied lumbar disc replacement. The disc was acquired from a German company by DePuy in 2004 and brought to market as the Charité III. The components of the disc were Cobalt-Chrome endplates caoted with hydroxyapatite (HA) and titanium plasma sprayed coating with spike-and-tooth fixation with an unconstrained ultra high molecular weight polyethylene sliding core. It was found in studies to have an increase loading of the posterior facet joints of 2.5x compared to normal. It was found to have high amount of AP translation that led to increased facet wear and increased adverse events.
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