Evaluation of Biomechanical Stability of Newly Developed Revision Total Knee Arthroplasty through Strain and Stress Distribution Analysis within the Tibia: Finite Element Analysis
경골 내 변형률 및 응력 분포 특성 분석을 통한 새로이 개발된 재치환용 인공슬관절의 생체역학적 안정성 평가: 유한요소해석

Paul Han, Young-Woong Jang, Oui Sik Yoo, Jung Sung Kim, Han Sung Kim, Dohyung Lim
2013 Journal of Biomedical Engineering Research  
In this study, biomechanical stability of the newly developed revision total knee arthroplasty (rTKA) was evaluated through strain and stress distribution analysis within the implanted proximal tibia using a three-dimensional finite element (FE) analysis. 2000N of compressive load (about 3 times body weight) was applied to the condyle surface on spacer, sharing by the medial (60%) and lateral (40%) condyles simulating a stance phase before toe-off. The results showed that PVMS within the
more » ... S within the revision total knee arthroplasty and the proximal tibia were less than yield strength considering safe factor 4.0 (rTKA: less than 10%, Cortical bone: less than 70%, Cancellous bone: less than 70%). The materials composed of them and the strain and stress distributions within the proximal tibia were generally well matched with those of a traditional revision total knee arthoplasty (Scorpio TS revision system, Stryker Corp., Michigan, USA) without the critical damage strain and stress, which may reduce the capacity for bone remodeling, leading to bone degeneration. This study may be useful to design parameter improvement of the revision total knee arthoplasty in biomechanical stability point of view beyond structural stability of revision total knee arthoplasty itself.
doi:10.9718/jber.2013.34.1.14 fatcat:btvkdpabyfgmhhkguj442jbkpu