Metal/Metal CoCr

The DJO Surgical Metal/Metal CoCr acetabular liners and femoral heads utilize new production technology, which includes removal of large block carbides, resulting in a smooth, groove-free surface.

Superior Surface Quality
A unique process is used to remove large block carbides within the material. The presence of large block carbides can elevate wear-in periods for metal-on-metal bearings2.

Homogenous Structure
The removal of block carbides gives the DJO Surgical metal/metal components a homogenous, fine-grained structure.

Carbide vs Fine Grain
Removal of block carbides results in favorable wear properties by improving corrosion resistance.

Comparison
In a wear-rate test of metal on metal vs. alumina on polyethylene, the wear of the metal-on-metal articulation was significantly decreased; this reduction was even more substantial when compared to the wear rate of the current standard of metal on polyethylene1.

Competitor v. DJO Surgical Surface Quality Comparison Fig. 1. Surface quality comparison.

Competitor v. DJO Surgical Homogeous, Fine-Grained Structure Fig. 2. Homogenous, fine-grained structure.
Competitor v. DJO Surgical Carbide vs. fine grain comparison Fig. 3. Carbide vs fine grain.
Wear Comparison Fig. 4. Wear Comparison