Abstract
Few controversies in total knee arthroplasty have persisted for as long as the debate over the appropriate role of the posterior cruciate ligament. Excellent long-term results have been obtained with a posterior cruciate substituting design in which the tibial post and femoral cam function as a mechanical PCL. The constraint created by conforming surfaces and the spine-cam mechanism has not lead to increased loosening or polyethylene wear. Important new information in the area of biomechanics, histology, gait analysis, kinematics and clinical results have strengthened the belief that a posterior cruciate substituting design is the implant of choice for most primary and revision total knee arthroplasties.
The abstracts were prepared by Professor Jegan Krishnan. Correspondence should be addressed to him at the Flinders Medical Centre, Bedford Park 5047, Australia.
