Loading on Attune® fixed-bearing cruciate-substituting total knee implant in knee malalignment during activities of daily living: A finite element analysis

被引：1
|
作者：
Shetty, Gautam [1 ,2 ]
Khairkar, Shruti [3 ]
机构：
[1] Knee & Orthopaed Clin, Mumbai, Maharashtra, India
[2] AIMD Res, Mumbai, Maharashtra, India
[3] Indian Inst Technol, Dept Mech Engn, Mumbai, Maharashtra, India
来源：
JOURNAL OF ORTHOPAEDICS | 2021年 / 26卷
关键词：
Contact pressure; Finite-element analysis; Attune total knee replacement; Malalignment; Activities of daily living; POST-CAM DESIGN; TIBIAL COMPONENT; CONTACT STRESS; ARTHROPLASTY; FAILURE;
D O I：
10.1016/j.jor.2021.07.002
中图分类号：
R826.8 [整形外科学]; R782.2 [口腔颌面部整形外科学]; R726.2 [小儿整形外科学]; R62 [整形外科学（修复外科学）];
学科分类号：
摘要：
Purpose: To compare contact stresses between Attune (R) and PFC Sigma (R) total knee arthroplasty (TKA) implants in the presence of knee malalignment. Methods: Maximum contact stress after finite element analysis were compared during standing, walking, and stair climbing in 0 degrees, 2.5 degrees and 5 degrees varus/valgus knee alignments. Results: The percentage increase in contact stress was highest during walking with PFC Sigma (R) in 5 degrees yams (238.5%), standing with Attune (R) in 5 degrees valgus (127.2%), and standing with Attune (R) in 2.5 degrees valgus (107.8%). Conclusion: The newer Attune (R) design may be associated with higher maximum contact stresses and increased risk of wear and implant failure.
引用
收藏
页码：36 / 41
页数：6
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