Total Femoral Replacement for Complicated Echinococcus Infection: Sixteen-Year Follow-up

Osseous hydatidosis caused by Echinococcus is rare, especially in long bones. To the best of our knowledge, this is the third femoral hydatidosis case with successful osseous eradication through total femoral resection and total femoral megaprosthesis. Unlike the previous 2 cases, we uniquely illustrate recurrent soft-tissue hydatidosis episodes requiring additional hydatid resections for local control with no evidence of disease at final 16-year follow-up, the longest follow-up period of the 3 reported cases.

Despite radical bone resection for osseous hydatidosis eradication, additional complex surgical interventions may be needed to locally control soft-tissue disease.