Alumina bearings in hip replacement: Theoretical and practical aspects

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Alumina-on-alumina hip replacement has been performed for more than 30 years. Overall conclusions from the pioneering period were that alumina had an excellent biologic tolerance and a very low rate of wear. Nevertheless, its use in joint replacement was mainly limited by the risk of implant fracture and socket loosening. Nowadays, great improvements in material quality and implant designs have been achieved, and a considerable increase of the longevity of total hip arthroplasty may be expected, especially in a young and active patient. However, this can only be achieved with a perfect knowledge of the characteristics of this material and with an adequate technique of implantation, calling for specific points that are essential for optimal and durable results.

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