CORR Insights®: Do Alumina Matrix Composite Bearings Decrease Hip Noises and Bearing Fractures at a Minimum of 5 Years After THA?

TL;DRAbstract

Where Are We Now? The implantation of alumina ceramic bearings in total hip replacement began around 45 years ago. Ceramic bearings are advantageous because they have a low volume of wear debris, high biocompatibility of the particles that are generated, and increased wettability of the surface compared to other friction couples. Previous studies [4, 6, 8] have demonstrated the long-term limited observation of osteolysis and a low frequency of revisions even in active and young patients, some of whom practice sports. One study [7] reported on the stability of pure alumina ceramic over time. This study also examined the dense fibrous tissue that might diminish the long-term risk of hip dislocation, an interesting biological reaction to pure alumina ceramics. However, concerns about fractures have justified the search for other materials. The introduction of an alumina matrix composite material, Delta ceramics (CeramTec, Plochingen, Germany), could potentially reduce the risk of dislocat

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