Durom™ Hip Resurfacing
Design Rationale
|
The Durom Hip Resurfacing has been designed for use in young active patients who are likely to outlive a "conventional" hip prosthesis. Emphasis has been placed on a highquality bearing surface, preservation of bone stock and durable fixation of the components to the skeleton. |
- The Metasul bearing is a proven low wear, low-friction articulation, having been implanted in over 250,000 patients since 1988. No other metal-on-metal bearing has such a track record.
- The Durom acetabular and femoral components have been designed to allow maximum preservation of bone stock. The wall thickness of the acetabular component is as low as practically possible and the cup subtends an angle of 165°, similar to the natural acetabulum. These features facilitate preservation of the acetabular bone stock. The sophisticated femoral instrumentation permits very accurate and reproducible positioning of the femoral component, allowing the smallest possible femoral implant to be used, which in turn allows the insertion of the smallest possible acetabular component, again preserving acetabular bone stock.
- The Porolock™ Ti VPS surface coating of the Durom acetabular component is vacuum plasma-sprayed pure titanium. This coating is associated with reliable bone in-growth ensuring long-term secondary fixation. The carefully controlled vacuum spraying process results in a very high adhesive strength between the chrome cobalt substrate and the Porolock™ Ti VPS coating, reducing the risk of the generation of titanium 3rd-body-wear particles.
- The femoral instruments produce an even cement mantle of approximately 1 mm, reducing the risk of fatigue failure of the bone cement. The recesses within the femoral component enhance rotational stability of the implant.
