Thigh Mass and Lytic Diaphyseal Femoral Lesion Associated with Polyethylene Wear After Hybrid Total Knee Arthroplasty

Osteolysis secondary to polyethylene wear can occur following total knee arthroplasty, but its presentation can be extremely variable1-7. We present the case of a patient who had an unusual biologic reaction to polyethylene wear that presented as a thigh mass and an extramedullary lytic diaphyseal femoral lesion thirteen years after hybrid total knee arthroplasty. The patient was informed that data concerning this case would be submitted for publication.