Assessing the non-inferiority of prosthesis constructs used in total and unicondylar knee replacements using data from the National Joint Registry of England, Wales, Northern Ireland and the Isle of Man: a benchmarking study

Objectives To investigate the relative performance of knee replacement constructs compared with the best performing construct and illustrate the substantial variability in performance. Design A non-inferiority study. Setting England and Wales. Participants All primary total and unicondylar knee replacements performed and registered in the National Joint Registry between 1 April 2003 and 31 December 2016. Main outcome measures Kaplan-Meier...