Results of Silver-coated Resection Prostheses in the Treatment of Periprosthetic Knee Infections with Bone Deficiency

Inclusion Criteria: * Diagnosis of periprosthetic knee infection on primary or already revised implants * Treatment of infection with two-stage protocol * Placement of articulated knee megaprosthesis (distal femoral or proximal tibial resection) or arthrodesis, silver-coated. * Clinical and radiographic follow-up obtained or obtainable greater than or equal to 24 months. * Completeness of clinical-radiographic documentation * Obtainment of informed consent * Age\>=18 years Exclusion Criteria: * Unfit patients * Patient with a history of oncology * Patient with contraindications to taking radiographs at follow-up