Periprosthetic Knee Infection - Part 1: Risk Factors, Classification and Diagnosis.

This fact increases the incidence and prevalence of degenerative diseases in general, including joint diseases. 1 2 Thus, it is natural and expected an increasing number of primary arthroplasties and revisions 3 performed as treatment of these diseases. 3 4 5 The socioeconomic impact on health systems is significant, particularly in the treatment of possible infections. 6 7 8 The incidence of periprosthetic knee infections in 2001 was of 2.09% and, in 2009, it was of 2.18%, with an increasing trend. 7 This complication is one of the main causes of rehospitalization, 9 accounting for between 13 and 25% of the reviews performed. 3 5 10 The estimated cost of treating periprosthetic infection is between 3 and 4 times higher than that of primary arthroplasty. 9 11 12 The objective of the present work is to review the most current information on the prevention, diagnosis and treatment of periprosthetic knee infection.

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