The GENUTECH REVISION ® system has been designed by a distinguished group of experts in Orthopedic Surgery and Traumatology in order to offer a specific system for patients with deficient prosthetic stabilization due to an inadequate functioning of both the midlateral and anteroposterior ligaments, as well as varus/valgus instability. In addition, in order to cover the bone stock deficiency found after the revision, this system has block augments and stems.