Does the Total Condylar 3 Constrained Knee Prosthesis Predispose to Failure of Revision Total Knee Replacement?

Revision total knee replacement is often complicated by bone loss and synovitis, which can result in ligamentous laxity and imbalance. The Total Condylar 3 (TC3) constrained condylar geometry was developed to allow load sharing between the implant and the deficient soft-tissue attachments. However, many authors have suggested caution in the use of these devices because of the additional stresses imparted to the cement-bone interface1,2. We report on a series of patients who underwent revision total knee replacement with a Total Condylar 3 implant and metaphyseal cementing, or so-called hybrid stem fixation (Figs. 1-A and 1-B).