Why a knee replacement can go bad

A study published April 17, 2019 in The Lancet infectious Diseases journal notes that the leading patient-related risk factors for severe infection after knee replacement were: being younger than 60; being male; having chronic pulmonary disease, diabetes or liver disease; and having a higher body mass index. Researchers found the reason for knee replacement, the type of procedure performed and the type of knee replacement influenced the risk of needing more surgery due to infection. People who had a knee replacement after an injury, inflammatory arthritis or a history of previous infection in the affected knee were more likely to require additional surgery due to infection. Patients with cemented total knee replacements were more likely to undergo additional surgery due to infection than those with an uncemented implant. 


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