The Stryker Trident® Ceramic Acetabular System is a ceramic-on-ceramic implant system used to replace the “ball and socket” joint of a hip when a total hip replacement is performed for patients suffering from arthritis or related conditions. Unlike conventional hip implants, the Trident® system utilizes alumina ceramic-on-ceramic surfaces rather than metal-on-plastic or metal-on-metal. Ceramic-on-ceramic components have demonstrated significantly lower wear versus the conventional metal-on-plastic or metal-on-metal systems in the laboratory; therefore, it is anticipated that these improved wear characteristics will extend the life of the implant.
Acetabular shell design is also important for long-term performance for the hip implants. The Trident® Ceramic System is a cementless system, which means that the implants are fixed to the bone through implant design and technique, rather than using bone cement. Additional technology such as Arc Deposition and Hydroxyapatite (HA) coating are an essential part of the shell design.