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DURATION Polyethylene

  • Added May 1, 2013
  • Manufactured by Stryker

Duration Stabilised Ultra High Molecular Weight Polyethylene (UHMWPE) was the first annealed (heated below melting temperature) crosslinked polyethylene. Crosslinking is achieved by irradiation, and so the manufacturing process involves irradiation followed by heating. Heating tends to reduce...

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Zimmer Longevity Highly Crosslinked Polyethylene | Which Medical Device

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Longevity Highly Crosslinked Polyethylene

  • Added Apr 27, 2011
  • Manufactured by Zimmer

Zimmer Longevity Highly Crosslinked Polyethylene The Longevity is Zimmer’s highly crosslinked polyethylene insert designed for total hip arthroplasty, launched in 1999. It is available as standard, 10° elevation, 20° elevation and 7 mm offset. (Zimmer.com, accessed 13/4/11) The...

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Depuy Synthes Marathon Cross-Linked Polyethylene | Which Medical Device

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Marathon Cross-Linked Polyethylene

Marathon Cross-Linked Polyethylene is a third generation cross-linked polyethylene. The manufacturing process involves 5 MRad of gamma irradiation, followed by a thermal treatment which is said to reduce free radicals in the polyethylene, enhance material consolidation and reduce the oxidative...

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Smith & Nephew Oxinium | Which Medical Device

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Oxinium

Oxinium is the trade name for a bearing material manufactured by Smith and Nephew and available in the Journey and Genesis II knees, and Smith and Nephew hip prostheses. When combined with XLPE (Smith and Nephew's cross linked polyethylene) it is known as VERILAST technology. The material...

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Stryker Tritanium | Which Medical Device

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Tritanium

  • Added May 24, 2013
  • Manufactured by Stryker

Tritanium (R) from Stryker is a reticulated porous titanium coating for titanium alloy components. Frenkel et al report a porosity of 65-70% compared with titanium (30-35%) and cobalt chrome beads (35-40%), and excellent bone ingrowth in animal studies.  Tritanium was also a fictional...

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