The dual articulation acetabular system consists of an acetabular shell and a polyethylene liner that freely rotates into the shell and positively captures the prosthetic head. This creates two articulations that share the same center: a small articulation between the metal head and the liner, and a large articulation between the liner and the metal shell. The objective of this dual articulation implant design is maximal implant stability combined with maximized range of motion.
• Fixation: Liberty SC – Cement free (0.8mm equatorial press-fit 5 fins)
• Fixation: Liberty AC – Cemented (Grooves to facilitate cement fixation)
• Fixation: Liberty T – Cement free (Flange with screw hole and two spikes)