PMC7592100_01
A and B, Anteroposterior and lateral views of the knee at injury, demonstrating comminuted tibial and femoral periprosthetic femur fractures with gross loosening and subsidence of the tibial component.
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The tibial component was deemed loose based on radiographic findings of loss of bony support, subsidence, and gross malalignment (Figure 1).
A and B, Anteroposterior and lateral views of the knee after initial debridement and placement of tibial antibiotic-laden cement spacer.
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Resection arthroplasty of the tibial implant was performed with placement of a proximal tibial antibiotic-laden polymethylmethacrylate spacer comprised of 2 g of vancomycin and 2.4 g gentamicin (Figure 2).
A and B, Anteroposterior and lateral views of the knee 1 year after complex revision knee replacement.
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Tibial Metaphyseal Cone, Exactech) was used for reconstruction (Figure 3).
Full-length weight-bearing standing radiographs one year after surgery demonstrating recreation of a neutral mechanical axis.
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Her long-standing weight-bearing radiograph is shown in Figure 4, which demonstrates restoration of neutral mechanical alignment of her left limb.