Cemented Or Non-Cemented Acetabular Prosthesis

The Novae® range is based on the Dual Mobility concept invented in 1975 by Professor Gilles BOUSQUET (Saint-Etienne University Hospital) and Mr André RAMBERT, founder of SERF.

Dual Mobility is the combination of two principles in orthopaedics:

Sir Charnley’s low friction concept: use of thick polyethylene with a small 22.2 mm head to reduce wear.
The McKee-Farrar concept: use of a large head to reduce the risk of prosthesis dislocation and instability.
The Dual Mobility design is made of two bearing surfaces :

Small articulation (or first mobility): articulation of the prosthesis head in the insert.
Large articulation (or second mobility): articulation of the insert in the cup.

CHARACTERISTICS AND MATERIALS
The Novae® cup range includes 5 implants:
Novae® SunFit TH is intended for cementless fixation due to its equatorial press-fit and dual coating.
Novae® Evolution TH has two pegs secured with fixing screws (one for the Novae® E TH) to complete bone anchoring.
Novae® Coptos TH has two pegs secured with fixing screws (4 screws for the Coptos TH) to complete bone anchoring.
Novae® Stick must be cemented to the bone and may be combined with the Novae® K E cross plate.
Novae® K E cross plate.
Novae® implants are made from the materials listed below:

Cementless cup: Stainless steel + dual coating made of titanium spray and HA.
Cemented cup and fixing screw: Stainless steel.
Pins: Alumina-coated stainless steel
Novae® K E cross plate: Stainless steel and PMMA
CI E liner: UHMWPE