Musculoskeletal Key

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…

Fig. 21.1 Medial and lateral McKeever hemiarthroplasty implants Fig. 21.2 Two-piece first-generation UKA implant Second-generation implants were introduced in the 1980s, and corrected many of the problems noted with first-generation…

Intra-articular  Infection Patellofemoral  Resurfaced vs. unresurfaced patella  Maltracking  Fracture  Avascular necrosis  Loosening  Patellar fibrosis  Overstuffing joint  Wear  Osteolysis Instability  Valgus-varus  Axial including midflexion  Malalignment  Arthrofibrosis  Recurrent hemarthrosis  Popliteus impingement  Loose…

Fig. 4.1 CT arthrogram of a knee with a medial unicondylar prosthesis . Note the minimal artifact produced by the metallic hardware on this reformatted image in the coronal plane….