{"title":"基于三周期最小表面支架设计的多孔Ti6Al4V胫骨植入物的静态和动态性能","authors":"Basma Eltlhawy, Noha Fouda, Ibrahim Eldesouky","doi":"10.1007/s11012-025-01967-7","DOIUrl":null,"url":null,"abstract":"<div><p>The current study aims to analyze the load transfer between bone and three different TPMS-stem implants designed for tibia-total knee replacement (TKR) application through an initial stage of recovery and after healing time under static and dynamic loading conditions. The TPMS-based scaffolds, Schwarz, diamond, and gyroid, are used for tibia-stem designs. The mechanical performance of TPMS-stem implants was investigated based on von Mises stress for various loading conditions using ANSYS 2021R1. The results showed that TPMS-stem implants increase the maximum von Mises stress on the bone surface under the tibia tray by 14–24% under static loading and 15–36% under dynamic loading compared to solid-stem implants. Also, TPMS-stem implants reduced the maximum von Mises stress in the stem tip area when static and dynamic loading were considered. Stress reductions of 21.3, 21, and 17% were obtained under static loading for diamond, Schwarz, and gyroid stem implants, respectively.</p></div>","PeriodicalId":695,"journal":{"name":"Meccanica","volume":"60 4","pages":"999 - 1014"},"PeriodicalIF":1.9000,"publicationDate":"2025-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Static and dynamic performance of porous Ti6Al4V tibia implant designs based on triply periodic minimal surface scaffolds\",\"authors\":\"Basma Eltlhawy, Noha Fouda, Ibrahim Eldesouky\",\"doi\":\"10.1007/s11012-025-01967-7\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The current study aims to analyze the load transfer between bone and three different TPMS-stem implants designed for tibia-total knee replacement (TKR) application through an initial stage of recovery and after healing time under static and dynamic loading conditions. The TPMS-based scaffolds, Schwarz, diamond, and gyroid, are used for tibia-stem designs. The mechanical performance of TPMS-stem implants was investigated based on von Mises stress for various loading conditions using ANSYS 2021R1. The results showed that TPMS-stem implants increase the maximum von Mises stress on the bone surface under the tibia tray by 14–24% under static loading and 15–36% under dynamic loading compared to solid-stem implants. Also, TPMS-stem implants reduced the maximum von Mises stress in the stem tip area when static and dynamic loading were considered. Stress reductions of 21.3, 21, and 17% were obtained under static loading for diamond, Schwarz, and gyroid stem implants, respectively.</p></div>\",\"PeriodicalId\":695,\"journal\":{\"name\":\"Meccanica\",\"volume\":\"60 4\",\"pages\":\"999 - 1014\"},\"PeriodicalIF\":1.9000,\"publicationDate\":\"2025-04-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Meccanica\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11012-025-01967-7\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MECHANICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Meccanica","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s11012-025-01967-7","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MECHANICS","Score":null,"Total":0}
Static and dynamic performance of porous Ti6Al4V tibia implant designs based on triply periodic minimal surface scaffolds
The current study aims to analyze the load transfer between bone and three different TPMS-stem implants designed for tibia-total knee replacement (TKR) application through an initial stage of recovery and after healing time under static and dynamic loading conditions. The TPMS-based scaffolds, Schwarz, diamond, and gyroid, are used for tibia-stem designs. The mechanical performance of TPMS-stem implants was investigated based on von Mises stress for various loading conditions using ANSYS 2021R1. The results showed that TPMS-stem implants increase the maximum von Mises stress on the bone surface under the tibia tray by 14–24% under static loading and 15–36% under dynamic loading compared to solid-stem implants. Also, TPMS-stem implants reduced the maximum von Mises stress in the stem tip area when static and dynamic loading were considered. Stress reductions of 21.3, 21, and 17% were obtained under static loading for diamond, Schwarz, and gyroid stem implants, respectively.
期刊介绍：
Meccanica focuses on the methodological framework shared by mechanical scientists when addressing theoretical or applied problems. Original papers address various aspects of mechanical and mathematical modeling, of solution, as well as of analysis of system behavior. The journal explores fundamental and applications issues in established areas of mechanics research as well as in emerging fields; contemporary research on general mechanics, solid and structural mechanics, fluid mechanics, and mechanics of machines; interdisciplinary fields between mechanics and other mathematical and engineering sciences; interaction of mechanics with dynamical systems, advanced materials, control and computation; electromechanics; biomechanics.
Articles include full length papers; topical overviews; brief notes; discussions and comments on published papers; book reviews; and an international calendar of conferences.
Meccanica, the official journal of the Italian Association of Theoretical and Applied Mechanics, was established in 1966.
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