The Active Articulation E1 Hip System is specifically indicated for patients at risk of dislocation. According to the manufacturer, it is the only dual mobility system to use Antioxidant Infused Technology which is intended to prevent oxidative degradation of the polythene component. ...

The Stryker ADM X3 is a bipolar or “mobile bearing” acetabular system, launched in early 2010 and comprising an X3 polyethylene intermediate bearing, which lies between the (ceramic) head and the shell. The shell is cutaway anteriorly with the intention of reducing the risk of psoas...

The Avantage Acetabular System is a Dual Mobility hip bearing system comprising a cemented shell and cementless component with pegs (Avantage 3P) , a cementless component without pegs (Avantage Reload) and a revision cup and reinforcement plate.   

Tornier's Dual Mobility Cup is available in cementless and cemented versions for primary replacement of the hip joint. The device has a metal back which, according to the manufacturer, ensures the joint range and stability are maintained. This image is provided courtesy of Tornier.

The Modular Dual Mobility acetabulum from Stryker (MDM) complements the ADM system, but is based on the Trident or Tritanium uncemented acetabular shells. The polyethylene component is manufactured from X3 polyethylene . The femoral head is either 22.2mm for smaller size shells, or 28mm. A CoCr...