The Pinnacle Acetabular Cup System is designed so your surgeon can choose which bearing surface (liner) he feels will best meet your needs. Liners for use with the Pinnacle Cup include:
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AltrX™ Altra-Link™ Polyethylene, which is made of extremely strong plastic to resist wear
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Ultamet™ XL Large Diameter Metal, which is made of a special surgical grade metal. These liners are designed to improve the hip's range of motion and stability while resisting wear.
The outer shell of the Pinnacle acetabular cup is covered with a 3-dimensional porous coating. This coating provides a surface for the patient's tissue to attach creating a strong bond. This process is called biological fixation, meaning it holds the cup in place, instead of relying on bone cement.
Bone cement is a substance used for fixation of some artificial joints to the skeleton. It acts as a filler between the implant and the bone.
Acetabular Cup Options
XL Acetabular Cup System
No implant or bearing material is best for all patients or medical conditions. Your surgeon will choose the optimum bearing surface for you. However, for many patients, the DePuy XL offers significant benefits over a traditional hip replacement. While traditional hip replacement utilized relatively small femoral heads (the ball that fits into the socket), it is now recognized that a larger head offers greater range of motion and stability because it is more like the natural hip. The ASR XL System uses a high performance metal bearing and allows your surgeon to use a larger replacement head more like your natural thigh bone.
