Fig. 14.1 x, y, and z axes. The three-dimensional universe can be plotted on the axes: x, y, and z. Considering that objects in space may either translate (move to…
Fig. 16.1 Stress X-ray indicating degree of medial opening in a painful TKA Classification System for Instability Parrate and Pagnano defined three types of instability after TKA—extension instability, flexion instability,…
Fig. 11.1 The LE axes (from Pollice P, Lotke P, Lonner J. Principle of instrumentation and component alignment. In: The adult knee. Philadelphia: Lippincott, Williams & Wilkins; 2003. p. 1085–93,…
Fig. 12.1 Massively obese 70-year-old woman with early mechanical failure following TKA. Varus alignment of the tibial component contributed to mechanical overloading of the medial compartment Fig. 12.2 Proper alignment…
Fig. 20.1 An AP radiograph of a previous HTO with nonunion, retained broken hardware, proximal tibial bone loss, and a sloping joint line The key issues that potentially influence the…
Fig. 28.1 A 70-year-old man with successful arthrodesis following failed two-stage reimplantation Advantages of the intramedullary rod technique include immediate weight bearing and easier rehabilitation, avoidance of external transfixation pins…
Fig. 25.1. Thinning of the polyethylene tibial insert is evident with visible joint space narrowing. Significant osteolysis is seen in the tibial, most prominently anteriorly and inferiorly to the tibial…
Fig. 22.1 Walldius Mark IV prosthesis (From Jones GB. Total knee replacement-the Walldius hinge. Clinical Orthopedics and Related Research. 1973 Jul-Aug(94):50–7, with permission) The long-term clinical results with the Walldius…
Fig. 15.1 Lateral incision with a full-thickness medial flap should be utilized when multiple incisions are present. The medial parapatellar approach is performed easily despite the lateral skin incision. Fig….
Fig. 8.1 (a) Radiograph of a failed total knee arthroplasty, demonstrating medial tibial collapse with component liftoff on the lateral side. (b) This knee was reconstructed using a custom tibial…
