Bearings and Liners

DePuy Synthes liners are designed to work with the PINNACLE Acetabular Cup System, providing a range of bearing technologies to provide surgeons the power to choose the precise combination that best meets the needs of each patient.

An approach to versatility offers more ways to bring together all the right components and materials for optimised performance. Choose a solution featuring one of three technologies1-13 available – MARATHON® Polyethylene Liners, ALTRX Polyethylene Liners and CERAMAX™ Ceramic Liners.

MARATHON

High performance MARATHON Liners are available for all PINNACLE Cup sizes. The internal diameter ranges from 22 mm to 48 mm in line with specific corresponding cups diameters. The MARATHON Polyethylene Liners are available in different stability options: neutral, lipped, with 10 degrees of orientation and with 4 mm of extra thickness to adjust offset. Ask your local DePuy-Synthes representatives for more information.

ALTRX

ALTRX polyethylene is available for PINNACLE cup sizes from an outer diameter of 44 mm onwards.

The internal diameter ranges from 28 mm to 48 mm in line with specific corresponding cups diameters. The ALTRX liners are available in different stability options: neutral, lipped, with 10 degrees of orientation and with 4 mm of extra thickness to adjust offset. Ask your local DePuy Synthes representatives for more information.

CERAMAX

CERAMAX Ceramic-on-Ceramic (CoC) combinations are available in a PINNACLE Cup from an outer diameter of 44 mm onwards with a 28 mm head and from 52 mm outer diameter onwards with a 36 mm head, either for primary or revision cases.

References

  1. McKellop H, et al.: Development of an Extremely Wear-Resistant Ultra High Molecular Polyethylene for Total Hip Replacements. J Orthop Res 1999; 17(2): 157-166.
  2. McKellop H, et al.: Wear of Gamma-Crosslinked Polyethylene Acetabular Cups against Roughened Femoral Balls. Clin Orthop Rel Res 1999; 369: 73-82.
  3. Liao, Y.-S., Greer K, et al. “Effects of Resin and Dose on Wear and Mechanical Properties of Cross-linked Thermally Stabilized UHMWPE.” Society for Biomaterials, the 7th World Biomaterials Congress, Sydney, Australia, 2004.
  4. Greer K. and Sharp,M. “Comparison of crosslinked UHMWPE stabilized by sequential annealing or by remelting”. Orthopaedic Research Society 53rd Annual Meeting, Transactions Vol.32, Poster #1784, San Diego, CA, 2007.
  5. DePuy Internal Test Report: WR050089; 2004.
  6. DePuy Internal Test Report: WR070074; 2008.
  7. Engh C A et al: A randomized prospective evaluation of outcomes after total hip arthroplasty using cross-linked marathon and non-cross-linked Enduron polyethylene liners. J Arthroplasty 2006; 21(Suppl 2):17-25.
  8. Beaule PE. et al. Jumbo Femoral Head for the Treatment of Recurrent Dislocation Following Total Hip Replacement. J Bone Joint Surg. 2002;84A:256-63.
  9. Rack R and Pfaff HG. A New Material Concept for Bioceramics in Orthopaedics. Proceedings of the 5th International CeramTec Symposium. Thieme Verlag, Stuttgart 2000: 136-140.
  10. Insley GM, Turner I, Fisher J, Streicher RM. In Vitro Testing and Validation of Zirconiatoughened Alumina.In: Bioceramics in Joint Arthroplasty, Garino J and Willmann G, eds, Thieme Verlag, Stuttgart 2002: 26-31.
  11. Burger W et al. High Strength and Toughness Alumina Matrix Composites by Transformation Toughening and 'In Situ' Platelet Reinforcement (ZPTA ) - The New Generation of Bioceramics. Key Eng Mat. 2001;192-195:545-548.
  12. Dowson D et al. A Hip Joint Simulator Study of the Performance of Metal-on-Metal Joints: Part I: The Role Materials. J Arthroplasty. 2004;19(8 Suppl.3):118-123.
  13. Dowson D et al. A Hip Joint Simulator Study of the Performance of Metal-on-Metal Joints: Part II: Design. J Arthroplasty. 2004;19(8 Suppl. 3):124-130.