Over 400,000 implantations over a period of 16 years reflect the great success of the Allofit Acetabular System. The cup imitates the original shape of the acetabulum, and is therefore a bone-conserving implant. Thanks to the modularity, it is possible to combine the Allofit cup with Zimmer’s current tribological bearings and different articulation diameters. A broad assortment of cup inserts provides a large selection of tribological options.