Measurement of the Silver Ion Concentration in Wound Fluids after Implantation of Silver-Coated Megaprostheses: Correlation with the Clinical Outcome

Table 1

Demographic descriptions of the patient cohort, the indication for the silver prosthesis, an illustration of the joint concerned, and the total silver mass of the respective prosthesis.

Patient no.	Age at the time of surgery	Gender	Type of fracture/tumor	Indication silver	Type of prosthesis	Silver mass (g)
1	37	w	Secondary open distal femur fracture	Infection Plate osteosynthesis	Proximal Tibia, distale femur	0.76
2	67	m	Fractured acetabulum	Infection THA	Proximal femur	0.62
3	83	w	Medial fracture of the femur neck	Infection dual head prosthesis	Proximal femur	0.46
4	73	m	Periprosthetic fracture of the femur	Infection THA	Proximal femur	1.69
5	50	m	Medial fracture of the femur neck	Infection dual head prosthesis	Proximal femur	0.46
6	81	w	Medial fracture of the femur neck	Infection dual head prosthesis	Proximal femur	0.67
7	83	w	Subtrochanteric fracture of the femur	Infection Plate osteosynthesis	Proximal femur	0.52
8	89	w	Medial fracture of the femur neck	Infection dual head prosthesis	Proximal femur	0.46
9	63	w	Pertrochanteric fracture of the femur	Infection intramedullary nail	Proximal femur	0.62
10	45	w	Secondary open supracondylar humerus fracture	Infection elbow prosthesis	Distal humerus, prox. ulna	0.4
11	46	w	Osteosarcoma	Loosened TKA	Proximal tibia, distale femur	1.33
12	55	w	Metastasis renal cell carcinoma head of the humerus	Prophylaxis	Proximal humerus	0.42
13	64	w	Metastasis cervix carcinoma distal humerus	Prophylaxis	Distal humerus, prox. ulna	0.95
14	71	m	Metastasis adenoca prox. femur	Prophylaxis	Proximal femur	1.03
15	24	m	Ewing's sarcoma prox. tibia	Prophylaxis	Proximal tibia, distal femur	1.24
16	66	w	Chondrosarcoma humerus	Prophylaxis	Proximal humerus	0.97
17	24	m	Osteosarcoma femoral shaft	Prophylaxis	Total femur	0.68
18	60	w	Metastasis mamma ca prox. femur	Prophylaxis	Proximal femur	0.75

Patients 1–10: infection group; patients 11–18: infection prophylaxis group; g: gram; THA: total hip arthroplasty; TKA: total knee arthroplasty.