الفهرس 
Introduction and aim of the workOnly 14 pages are availabe for public view
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Abstract
Nevertheless, the history of hip arthroplasty has been dynamic, and research continues to improve results, especially in young patients. Investigation has proceeded along two major paths, one to eliminate the use of cement and the other to improve the cemented hip. Both concepts have strong proponents and can be supported by the literature; but still considerable controversy remains.
The aim of this work was to evaluate the long term clinical and radiological follow up results of ceramic-polyethylene articulation in cemented THA.
Some clinical results have revealed a significant lower incidence of aseptic loosening of prostheses incorporating this couple. We believe that the major advantage of ceramic is related to the improved resistance to third body wear. This will increase the durability of the implant by reducing the amount of wear debris that is generated. However, the generation of even limited amount of wear debris remains a potential problem in the long term. As this will be strongly influenced by the longevity of implantation and the activity of the patient, we may recommend alumina on alumina in young active individuals as alumina over alumina articulations posses the advantage of very low wear rate. We also suggest that alumina over PE articulations is highly recommended for the less active middle aged patients