A numerical investigation into the effects of overweight and obesity on total knee arthroplasty

Wang, Chang, Guo, Yuan, Shi, Junfen and Chen, Weiyi (2017) A numerical investigation into the effects of overweight and obesity on total knee arthroplasty. Journal of Healthcare Engineering, 2017. pp. 1-8. ISSN 2040-2295

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Abstract

Overweight and obesity increase risks of knee osteoarthritis, which is a major cause of disability. Severe knee osteoarthritis can be treated by knee arthroplasty. Total knee arthroplasty has been used in overweight and obese patients; however, clinical reports showed that the outcome of this group of patients was not good as normal-weight patients. Two computer models were created in this paper to simulate the effect of excess loads on the distal femoral bone and contact pressures in total knee arthroplasty during a gait cycle. The numerical results showed increased stress in periprosthetic distal femoral bones and higher contact pressure on tibial polyethylene insert during the stance phase. Based on the computer simulation results and published research work, cementless total knee arthroplasty with thicker tibial polyethylene insert may be a better option for overweight patients.

Item Type: Article
Keywords: Total Knee Arthroplasty, Obesity
Schools and Departments: School of Engineering and Informatics > Engineering and Design
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA0349 Mechanics of engineering. Applied mechanics
Depositing User: Chang Wang
Date Deposited: 12 Jun 2017 06:20
Last Modified: 01 Jul 2017 15:30
URI: http://sro.sussex.ac.uk/id/eprint/68460

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