There are many models of prostheses, different in their form, their materials, some are implanted without “cement” (term used which actually designates an acrylic resin). The models used in the service are derived from models implanted for more than 30 years, giving excellent results which are maintained for many years. It is therefore for us a guarantee of safety and reliability, and are subject to continuous monitoring, at each inspection consultation.
In general, in people under 80 years of age, an unsealed acetabulum with an alumina ceramic joint surface will be used, provided the anatomy of the bony pelvis allows it to be securely attached. The ceramics are individually tested before implantation, and have been improved throughout the last decades, making them a perfectly reliable material, in particular with regard to the risks of fracture which have especially been reported for other types of ceramics (zirconia, that we do not use).
The undeniable theoretical advantage of this type of implant is its almost indestructible nature. When we know that the majority of polyethylene prosthesis changes are made after 10 or 15 years due to their wear, we see the benefit of using an implant that is very resistant to wear. More rarely, it will be a prosthesis whose acetabulum is polyethylene, sealed
Regardless of the type of acetabulum used, the femoral part will either be sealed with an acrylic resin, or implanted without cement if the bone quality allows it, especially in younger patients.
