Patellar button wear patterns in well-functioning total knee arthroplasty retrievals


One of the common reasons for early revision or poor outcome in total knee arthroplasty is due to patellar maltracking, loosening, or pain. Th e analysis of how the patellofemoral mechanism operates and wears in vivo has not been a focus of many retrieval studies. Th is paper describes the wear pattern observed on patellar buttons from well-functioning TKA specimens that were harvested as part of a donor program. Th e attempt was to describe the variations in wear patterns to see if any commonalities existed that may predict a well-functioning patellofemoral mechanism after TKA. © 2010 by Begell House, Inc.

Publication Title

Journal of Long-Term Effects of Medical Implants