Abstract
Materials and Methods
The causes of 90 revision total knee arthroplasties were analyzed in 84 patients between December 1996 and June 2006. The patients' history, medical records and radiographs were reviewed in order to detect the main cause of failure of the primary TKA.
Results
The causes of revision TKA are as follows: 34 infections (37.8%), 26 loosenings (28.9%), 17 polyethylene wears or breakages (18.9%), 5 stiffness (5.6%), 4 polyethylene dislocations (4.4%), 2 patellar dislocations (2.2%), 1 patellar component failure and 1 instability (1.1%). The mean interval from the index operation to the revision surgery was 59 months (1 month-20 years).
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