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.

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.
Fig. 1. Surface quality comparison.
Fig. 2. Homogenous, fine-grained structure.
Fig. 3. Carbide vs fine grain.
Fig. 4. Wear Comparison