Cementless Acetabular Prosthesis

Range of cylindrico-spherical dual mobility cups.
Dual mobility concept implies that the liner moves within the metal cup and the femoral head moves within the liner; this increases the joint's stability and reduces wear. It keeps fundamental features of previous verion, so it keeps its clinical results since 2000.

Cylindro-spherical cementless cup with flat pole maximizing press-fit effect.
Design based on Saturne® experience
No fixation holes means that articulating surface is smooth and continuous.
Shape with 3mm over hemisphere, ensuring good coverage of head + liner, while keeping a high range of motion.
Dual coating: plasma-sprayed titanium (80 µm) + HAP (80 µm)

Primary fixation ensured by +0.5 mm equatorial press-fit:
- Inverted chevron-shaped notches provide rotation stability
- Horizontal parallel grooves around equator optimize hold of cup in bone

Bearing surface with liner is highly polished
Rounded and highly polished cup rim to prevent liner abrasion during joint reduction and to minimize wear if femoral neck contact was to occur

Femoral head retention ensured by retaining mechanism at its recess threshold
Chamfer at threshold of retaining mechanism delays contact with stem neck, allows greater clearance of femoral stem in liner and helps to reduce PE wear

SATURNE® dual mobility cups range remains available to propose a complete solution:
Reconstruction version
Same polyethylene liners for all versions