In revision total knee arthroplasty (TKA), femoral head allografts are used to manage large bone defects that can occur due to osteolysis, loosening of the implant, infection, or fracture. These defects can affect the stability of the joint and the ability to correctly align the new prosthetic components. Femoral head allografts provide immediate mechanical stability, allowing for accurate alignment and fixation of the prosthesis.

Specification Clinical Support

The study demonstrates that utilizing shaped femoral heads as structural allografts, combined with long stemmed components, can lead to successful outcomes in managing severe tibial bone loss during revision total knee replacement.
This study found that using a femoral head structural allograft for managing massive bony defects in revision total knee arthroplasty (TKA) resulted in significantly improved clinical outcomes compared to methods not using FHSA, potentially due to superior cement fixation in the allograft bone's trabecular microstructure.