Variability in Total Knee Arthroplasty
Total knee arthroplasty (TKA) is a procedure that attempts to restore the normal function of the knee by replacing the articular joint surfaces with manufactured components. There are numerous methods and techniques that are used to perform the TKA procedure however, the vast majority of TKAs are performed by hand and require skill and expertise when using the implantation tools. This reliance on the manual dexterity of surgeons may result in variability and errors during various steps in the procedure, including during bone resections and jig alignment.
The purpose of this project is to investigate the potential variability in the final component alignments due to compounded errors introduced during each step of the procedure. More specifically, we are interested in the distribution of final component alignments among a population of individuals, as misaligned components require early revision procedures. Additionally, we are interested in the sensitivity of each step of the TKA procedure to identify where the greatest improvements in the procedure may be made.
Gatti CJ, Hallstrom BR, and Hughes RE, 2013.
Surgeon variability in total knee arthroplasty component alignment: A Monte Carlo analysis.
Computer Methods in Biomechanics and Biomedical Engineering 17(15): 1738-1750.