Fatal fat embolism following femoral head resection in total hip arthroplasty.

We report a rare complication during primary total hip arthroplasty. A fatal fat pulmonary embolism immediately followed removal of the femoral head, prior to further preparation of the acetabulum or femoral shaft. Fat embolism syndrome is a well-known complication during total joint arthroplasty, usually attributed to preparation of the femoral shaft, particularly intramedullary reaming and insertion of the prosthesis. These risk factors have previously been identified in the literature. We believe that this case highlights the need for further research to establish the intramedullary pressures during the processes of dislocation and resection of the femoral neck and the attendant risk.