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Zimmer, Inc.

Longevity® Highly Crosslinked Polyethylene

Longevity Crosslinked Polyethylene was developed to address the issue of wear in total hip arthroplasty. To help ensure optimal wear resistance, Zimmer employs a proprietary process.

Removable Longevity Liners are available in neutral, elevated, oblique, and 7-mm offset. This offers a range of options to assist the surgeon in optimizing femoral head coverage and restoring proper hip kinematics.

Using high-dose electron-beam radiation, this process fully crosslinks broken molecular chains, leaving virtually no free radicals to promote oxidation.

This process creates a three-dimensional structure that is more resistant to abrasion and process a 10-fold wear rate reduction compared to standard polyethylene control samples.1,2 Extensive hip-simulator wear testing has demonstrated the benefits of crosslinking with Longevity Polyethylene.

Longevity Crosslinked Polyethylene is available with the Trilogy ® Acetabular System.

Works as Predicted
In vivo

  • 10+ years of clinical experience
  • More than 1 million Zimmer Highly Crosslinked Polyethylene Liners implanted3
  • In a seven to ten year follow-up of 247 primary THA's using Zimmer Highly Crosslinked Liners, femoral head penetration did not increase over time after the first year of implantation using 241 primary THA's using standard polyethylene as the control4

In vitro5

  • Independent testing has shown that the in vitro wear rate of Zimmer's Highly Crosslinked Polyethylene was near zero and lower than that of its competitors

Please refer to the package inserts for complete product information, including contraindications, warnings, precautions, and adverse effects.

Cleaning Instructions

Longevity implants are sterilized with Ethylene Oxide Gas and carry the symbol on the labeling. These devices remain sterile as long as the package integrity has not been violated. Inspect each package prior to use and do not use the component if any seal or cavity is damaged or breached or if the expiration date has been exceeded. Once opened, the component must be used or discarded.

Resterilization Information
Resterilization of this device is specifically not recommended.

References

  1. Data on file at Zimmer, Inc.
  2. Oonishi H, Saito M, Kadoya Y. Wear of high-dose gamma irradiated polyethylene in total joint replacement – long-term radiological evaluation. 44th Annual Meeting, Orthopaedic Research Society, March 16-19, 1998.
  3. Bragdon, CR, et al., Seven-to-Ten Year Follow-Up of Highly Crosslinked Polyethylene Liners in Total Hip Arthroplasty, Poster No. 2444, 55th Annual Meeting of the Orthopaedic Research Society, Las Vegas, 2009.
  4. Data on file at Zimmer.
  5. Muratoglu OK, et al., The comparison of the wear behavior of four different types of crosslinked acetabular components. 46th Annual Meeting of the Orthopaedic Research Society. Paper 0566. 2000.

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