Contrary view: wear is not an issue.
Wear was not an issue with total knee replacements that had a round-on-round design such as the Total Condylar and the Insall-Burstein prostheses. As long as designs do not try to reproduce normality in kinematics, wear will not be an issue. To date, there are no data that mobile-bearing knee replacements will decrease wear complications as compared with round-on-round fixed designs. Wear is not an issue if the total knee replacement is done with a round-on-round design with a cobalt chrome femoral component, monoblock tibial component, and an all-polyethylene patella, all with cemented fixation.
Dorr
Lawrence D
LD
The Arthritis Institute, Inglewood, CA 90301, USA. Patricia.Paul@TenetHealth.com
D019645:Arthroplasty, Replacement, Knee / Q000379:methods; D006801:Humans; D007720:Knee Prosthesis; D011474:Prosthesis Design; D011475:Prosthesis Failure