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Different models of prosthetics
Since 1960, the design and materials of prostheses have been progressively evolving.
The choice of model varies depending on the quality of the host bone, the age of the patient and the experience of the surgeon.
Cemented prostheses, which are fixed to the host bone using cement.
Uncemented prostheses, which are attached by direct integration of the host bone into the prosthetic surface.
As regards the cup, most orthopaedic surgeons currently choose the uncemented implant, for which the immediate stability is provided by the “point contact” (press-fit) or “pressure” on the surrounding bone. The choice of the stem depends on the quality of the bone: in the case of osteoporotic bone (poor bone quality) it is advisable to choose a cemented implant.
A further distinction between the different hip arthroplasty models used today is given by the different materials for coupling the femoral head-cup insert.
The information provided is not medical advice, nor is it intended as a substitute for medical advice. Under no circumstances should this information be a substitute for a consultation, examination or diagnosis given by a doctor.
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