Current Failure Mechanisms After Knee Arthroplasty Have Changed: Polyethylene Wear Is Less Common in Revision Surgery

Conclusions: Aseptic loosening, instability, malalignment, and periprosthetic infection continue to be the primary failure mechanisms leading to revision surgery. Contrary to previous literature, the results in the present study showed a substantial reduction in implant-associated revisions such as those due to polyethylene wear. Failure mechanisms that occur persistently early and in the intermediate term, such as periprosthetic infection, instability, and malalignment, remain common causes of revision surgery. Level of Evidence: Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.
Source: The Journal of Bone and Joint Surgery - Category: Orthopaedics Authors: Tags: Knee Scientific Articles Source Type: research