Longevity® Highly Crosslinked Polyethylene
Longevity® Highly Crosslinked Polyethylene
Longevity Highly Crosslinked Polyethylene was developed to address the issue of wear in total hip arthroplasty. To help ensure optimal wear resistance, Zimmer Biomet employs a proprietary manufacturing process.
- High-Dose Electron-Beam Radiation
This process fully crosslinks broken molecular chains, leaving virtually no free radicals to promote oxidation.
- Benefits
- Highly Resistant to Wear
Proprietary electron beam process delivers 10Mrad dosage for greater crosslinking, resulting in superior long-term polyethylene wear performance compared to conventional polyethylene.2,3,4,
- Highly Resistant to Aging
Melt annealing vs. warm annealing virtually eliminates free radicals. Retrievals up to 10 years in vivo demonstrate no oxidation.5,6, 7
- Functions as Intended
With millions of Longevity liners implanted since 1999, in a seven to ten year follow-up of 247 primary THA's using Zimmer Biomet 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 control.8,9
