PMC4519636_01
Radiographs in anteroposterior and lateral views of the left knee, demonstrating the revision prosthesis without signs of loosening or dislocation of the tibial polyethylene.
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Although the initial diagnostic hypothesis suggested the possibility of periprosthetic fracturing, radiographs demonstrated displacement of the tibial polyethylene (Fig. 1).
Transoperative clinical image of revision of the arthroplasty of the left knee, demonstrating osteolysis in the medial tibial metaphysis.
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During the operation, an area of osteolysis in the proximal medial tibial metaphysis was shown, in addition to dislocation of the polyethylene (Fig. 2).
Transoperative clinical image (final result) of revision of the arthroplasty of the left knee.
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Thus, the polyethylene piece was exchanged and a larger medial metal wedge was inserted (Fig. 3, Fig. 4).