text size A A A

Stryker X3 Bearing Technology

X3 Acetabular Insert with Trident cup and BIOLOX* delta ceramic head
X3 Acetabular Insert with Trident cup and BIOLOX* delta ceramic head
X3 Acetabular Insert with Trident cup and BIOLOX* delta ceramic headX3 Acetabular Eccentric InsertX3 Acetabular Locking Insert

X3 Bearing Technology

X3 is a material advancement in bearing technology. As a pioneer in wear-performance technologies, Stryker Orthopaedics has been dedicated to offering bearing surface improvements. Building upon the clinical success of Duration and Crossfire Polyethylene, Stryker developed a new annealing process with three sequential irradiation/annealing steps to create the X3 technology.

Features & Benefits

Stryker’s X3 Bearing technology is the first highly crosslinked polyethylene to offer:

*BIOLOX is a registered trademark of Ceramtec.

Related Products

Stryker Corporation or its divisions or other corporate affiliated entities own, use or have applied for the following trademark(s) or service mark(s): Polyethylene X3. All other trademarks are trademarks of their respective owners or holders.

References

1. Wang, A,Manley, M, Serekian, P, “Wear and Structural Fatigue Simulation of Crosslinked Ultra-High Molecular Weight Polyethylene Hip and Knee Bearing Applications,” Crosslinked and Thermally Treated Ultra-High Molecular Weight Polyethylene for Joint Replacements, ASTM STP1445, S.M. Kurtz, R. Gsell, and J.Martell, Eds., ASTM International, West Conshohecken, PA, 2003, pp. 151-168.

2. Essner, A, et.al., “Acetabular Liner Function Fatigue Performance of Crosslinked UHMWPE,” 51st Annual ORS paper No. 0245,Washington, DC, 2005.

3. Stryker Orthopaedics Trident Acetabular Inserts made of X3 , 721-00-32E, show a 97percent reduction in volumetric wear rate versus the same insert fabricated from N2/Vac gamma sterilized, 620-00-32E. The insert tested was 7.5 mm thick with an diameter of 32 mm. Testing was conducted under multi-axial hip joint simulation for 5 million cycles using a 32mm CoCr articulating counterface and calf serum lubricant. X3 UHMWPE Trident Acetabular Inserts showed a net weight gain due to fluid.

4. Stryker Orthopaedics Test Report: RD-03-082.

5. X3 UHMWPE maintains mechanical properties after accelerated aging. No statistical difference was found for Tensile Yield , Ultimate Tensile Strength and Elongation as measured per ASTM D638 before and after exposure to ASTM F2003 accelerated (5 Atmospheres (ATM) of oxygen at 70°C for 14 days). Tensile Yield Strength was 23.5 ± 0.3 MPa and 23.6 ± 0.2 MPa, Ultimate Strength was 56.7 ± 2.1 MPa and 56.3 ± 2.3 MPa and Elongation was 267 ± 7 percent and 266 ± 9 percent before and after oxidative aging, respectively.

6. X3 UHMWPE resists the effects of oxidation. No statistical was found for Tensile Yield Strength, Ultimate Tensile, Elongation, Crystallinity and Density as measured per D638, D3417 and D1505 before and after ASTM F2003 accelerated aging (5 ATM of oxygen at 70°C for 14 days). Tensile Strength was 23.5 ± 0.3 MPa and 23.6 ± 0.2 MPa, Ultimate Strength was 56.7 ± 2.1 MPa and 56.3 ± 2.3 MPa, Elongation was 267 ± 7 percent and 266 ± 9 percent, Crystalllinity was 61.7 ± 0.6 percent and 61.0 ± 0.5 percent and Density was 939.2 ± 0.1 kg/m3 before and after accelerated oxidative aging, respectively.