The bi-unicompartmental knee prosthesis

Abstract

The bi-unicompartmental knee prosthesis [1-5] is a system that uses two independent components, femoral and tibial, to preserve the tibial eminentia with the anterior cruciate ligament (ACL). Although in the majority of prosthetic knee systems the cruciate ligaments are sacrificed or only the posterior cruciate ligament (PCL) is preserved, a long-term research objective has been to reproduce the normal articular kinematics of the knee, replacing only the worn areas while respecting the capsule and ligaments (Fig. 9.1).