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Hip Joint Replacement


Mary Lou Retton - Biomet Total Joint Replacement Recipient

Hip replacement surgery removes the arthritic ball of the upper femur (thighbone) as well as the damaged bone and cartilage from the hip socket. The damaged bone and cartilage are replaced with implants made from materials including metal alloys, polyethylene (plastic), or ceramic.

The implants are designed to create a new, smoothly functioning joint that replaces painful bone-on-bone contact.

              

The Taperloc® Hip - Over 20 years of clinical heritage

For over 20 years, the Taperloc® Hip System from Biomet has led the competition in design, materials, and excellent clinical results. Its design enables the stem to wedge into the femoral (thighbone) canal, promoting enhanced stability and longevity.

Few implants have clinical results to match the Taperloc® Hip. The implant has demonstrated 95% success after 18 years, unrivaled by other comparable hip systems.1

  • Implant offers three design options to optimize patient implant-to-bone fit
  • Mini version for minimally-invasive surgery
  • Clinical success unrivaled by other hip systems

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1. Parvizi J et al.; "Primary total hip arthroplasty with an uncemented femoral component: a long-term study of the Taperloc stem." J Arthroplasty, 19(2):151-6. Feb., 2004.


E-Poly™ Highly-Crosslinked Polyethylene and Regenerex® Titanium Porous Construct

Biomet continues to work on introducing new technologies that may increase the longevity of its orthopedic implants. Two such technologies have been introduced recently with implants available for total hip replacement.

E-Poly™ Highly-Crosslinked Polyethylene, from Biomet, is the only Vitamin E enhanced polyethylene. The process begins with Biomet's clinically proven ArCom® polyethylene. Vitamin E, a natural anti-oxidant, is then added to the ArCom® poly, which has demonstrated in laboratory testing a greater resistance to harmful oxidation, which can weaken the material.1 Polyethylene oxidation is like rust on a car, which can weaken the polyethylene.

Regenerex® Porous Titanium Construct is a highly porous metal that is engineered to allow bone to rapidly grow into the implant. This potentially helps the implant to stay in place longer. Regenerex® material is used for the hip cup, the implant that resurfaces the damaged socket portion of the hip. The cup can then be used with E-Poly™ liners.

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1. Data on file at Biomet. Bench test results are not necessarily indicative of clinical performance.


The M2a-Magnum™ Metal-on-Metal Hip

Metal-on-metal hip implants are designed to address the demands of active lifestyles. These implants feature a metal ball that glides in a metal cup, which provides additional wear resistance.

One benefit of metal-on-metal hip implants is reduced wear over time. Extensive laboratory testing has demonstrated that metal-on-metal hip implants have a 99% reduction in volumetric wear when compared to conventional metal-on-polyethylene implants.1

Metal-on-metal implants can also accommodate a larger femoral head (metal ball) than traditional metal-on-polyethylene or ceramic-on-ceramic implants. This may reduce the risk of dislocation, increase range of motion and provide greater reduction in wear when compared to smaller implant heads.2

  • Less wear1
  • Less risk of dislocation2
  • Increased range of motion2

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1 Data on file at Biomet Manufacturing Corp. Bench test results not necessarily indicative of clinical performance.
2 McKellop, et al.: In-Vivo Wear of 3 Types of Metal-On-Metal Hip Prostheses During Two Decades of Use. CORR, 329, pp. 128-140, August 1996.