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Published on: January 24, 2018
Periprosthetic fracture of the proximal tibia after lateral unicompartmental knee arthroplasty
Arun Kumar1, Iain Chambers, Paul Wong
1Department of Orthopaedics, Toronto East General Hospital, Toronto, Ontario, Canada.
Abstract:
We report a case of periprosthetic fracture of the proximal tibia after lateral unicompartmental knee arthroplasty following a trivial fall. At the time of surgery, the components were found to be loose; and there was a large uncontained tibial defect with bone loss and communition at the fracture site. The patient was treated by revision total knee arthroplasty and proximal structural tibial allograft, with a satisfactory result at 5-year follow up. Our case illustrates that a bone-conserving unicompartmental knee arthroplasty, if complicated by a periprosthetic fracture, can also present with a difficult surgical problem. Attention to preoperative planning and to availability of structural allograft for such difficult cases is recommended.
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