Comparative Analysis of Ceramic to Ceramic Bearing with Metal to Electron Beam-Irradiated highly cross-linked UHMWPE Bearing
Ceramics were introduced in total hip arthroplasty to address the problems of friction and wear that were reported with metal on polyethylene articulations. This remarkable sliding characteristics and wettable material could limit wear debries generation and provide longer lifetime of the artificial hip. Extensive clinical study shows that alumina to alumina is the best used in young and active patients, while the classic metal on polyethylene couple remains the gold standard in the remaining population. Compared with metal, ceramic is weak in tension and brittle and fracture is well recognized problem.