It is generally accepted that the fungal infection on a joint prosthesis is to be treated in two surgical time: implant removal and prosthetic reconstruction. The service took the option for over 10 years to treat bacterial infections in joint replacement by a change in time. In four recent cases the diagnosis initially suspected of bacterial infection has been restated on intraoperative bacteriological examinations fungal infection. It is therefore a potentially harmful side effect of the chosen treatment option, but 4 patients in question were all cured of their fungal infection after a postoperative antifungal therapy. The objective of this study is to report these cases for discussion on the therapeutic choices in fungal infections on joint replacement.

Inclusion Criteria:

• Patients over 18 years
• Patient having surgery for the management of fungal infection after change in one step in joint replacement prothesis in the participating services in 2014.

Exclusion Criteria:

• Patients under 18 years

Patients over 18 years having surgery for the management of fungal infection after change in one step in joint replacement prothesis in the participating services in 2014.