文章基本信息

标题：Finite element analysis of long-term changes of the breast after augmentation mammoplasty: Implications for implant design
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作者：Živilė Gedminaitė-Raudonė ; Dalia Vidickienė ; Rita Vilkė 等
期刊名称：Archives of Plastic Surgery
印刷版ISSN：2234-6163
出版年度：2019
卷号：46
期号：4
页码：386-389
DOI：10.5999/aps.2019.00346
出版社：The Korean Society of Plastic and Reconstructive Surgeons
摘要：The development of breast implant technology continues to evolve over time, but changes in breast shape after implantation have not been fully elucidated. Thus, we performed computerized finite element analysis in order to better understand the trajectory of changes and stress variation after breast implantation. The finite element analysis of changes in breast shape involved two components: a static analysis of the position where the implant is inserted, and a dynamic analysis of the downward pressure applied in the direction of gravity during physical activity. Through this finite element analysis, in terms of extrinsic changes, it was found that the dimensions of the breast implant and the position of the top-point did not directly correspond to the trajectory of changes in the breast after implantation. In addition, in terms of internal changes, static and dynamic analysis showed that implants with a lower top-point led to an increased amount of stress applied to the lower thorax. The maximum stress values were 1.6 to 2 times larger in the dynamic analysis than in the static analysis. This finding has important implications for plastic surgeons who are concerned with long-term changes or side effects, such as bottoming-out, after anatomic implant placement.
关键词：Mammaplasty; Breast implants; Finite element analysis; Computer simulation