Cementless acetabular prosthesis DUALIS

The concept of DOUBLE MOBILITY, head-insert and insert-cup, is recognized and proved as a means to reduce the risk of dislocation and subsequent treatment. The principle is to combine high joint stability through a large diameter polyethylene insert and reduce shear forces through the “low-friction” head-insert coupling. Three circumferential grooves for increased primary press-fit; Mirror finish on the inside to reduce polyethylene wear; Cranially prolonged spherical shape and protruded edge (+ 3mm) in order to avoid dislocation; Caudal unloading: prevents conflicts with the femoral neck; Materials: High-nitrogen steel; Double Ti SPS + HA OSPROVIT plasma spray coating for greater secondary stability.