Musculoskeletal Key

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….

Fig. 19.1 Lateral radiograph shows a worrisome anterior notch on the distal femur, which could place this patient at higher risk for fracture . The surgical technique was also compromised…

Healthy patients with long-standing infection and/or high-virulence organism 4 g vancomycin and 4.8 g tobramycin per 40 g bag of simplex bone cement Standard dosing in patients with no major comorbidities 3 g vancomycin…

Fig. 13.1 Well-fixed cemented revision implants Finally, when considering the incorporation of allograft into a revision construct, Completo et al. [7] investigated the effect that stems had in stress shielding…

Fig. 10.1 Photograph depicting an implant specific tibial sleeve (DePuy; Warsaw, IN) Recent Innovations In 1999, Bobyn et al. [12] studied cylindrical porous tantalum implants in a transcortical canine model…

Fig. 23.1 (a) Anteroposterior and (b) lateral radiographs showing extra-articular tibial and femoral fractures resulting in coronal and sagittal plane deformities Although primary total knee replacement is not infrequently performed…

Fig. 6.1 After revision arthroplasty for infection and placement of a lateral gastrocnemius pedicle flap , this incision is displaced to the medial side of the midline in order to…