Trabecular Metal Revision Shell
Initial and Long-Term Stability
- Fully-interconnected trabecular structure with two to three times the porosity of other cups enables extensive tissue ingrowth and strong attachment.1
- High coefficient of friction1 against bone provides great scratch-fit and initial stability.
- Low stiffness of Trabecular Metal™ material can produce more normal physiological loading and reduce stress shielding.2
- One-piece construct, created by cementing the liner, eliminates concerns about backside wear.
- Elliptical geometry creates a 2mm interference fit at the periphery of the shell, maximizing bone contact for initial and long-term stability.
Versatile Fixation and Positioning
- Shell can be used in majority of primary and revision cases.
- Shell is placed in best position for maximum host bone contact, while liner can be oriented independently, allowing for best patient version.
- Dome screw holes allow for additional fixation into structural bone.
- Various liner configurations available to best meet patient need.
Trabecular Metal material not only looks like bone, but it also acts like bone. Its high compressive strength and low modulus of elasticity are comparable to cancellous bone. 1,3 These features are what make Trabecular Metal — The Best Thing Next to Bone .™
References
- Bobyn JD, Hacking SA, Chan SP, et al. Characterization of a new porous tantalum biomaterial for reconstructive orthopaedics. Scientific Exhibit, Proc of AAOS, Anaheim, CA. 1999.
- Pedersen DR, Brown TD, Poggie RA. Finite element analysis of periarticular stress of cemented, metal-backed, and porous tantalum backed acetabular components. 45th Annual Orthopaedic Research Society Meeting, Anaheim, CA. 1999.
- Krygier JJ, Bobyn JD, Poggie RA, et al. Mechanical characterization of a new porous tantalum biomaterial for orthopaedic reconstruction. Proc SIROT. Sydney, Australia, 1999.
