 By exchanging the metal material of the bearing with BIOLOXdelta ceramic, a better wearing and more inert material, the positive clinical performance aspects of MoM hip resurfacings are retained, while the main cause of early revision is removed. The anatomic shape of the contours of the devices may go some way to reducing the pain caused by soft tissue erosion, Thus, the H1 ceramic-on-ceramic hip resurfacing could be used for wider indications than the currently restricted group of large men. Patients with smaller head sizes, females and patients with metal sensitivity may all be candidates, enabling them the option to have a more conservative operation if appropriate. 