中国组织工程研究 ›› 2025, Vol. 29 ›› Issue (34): 7369-7375.doi: 10.12307/2025.499

• 生物材料综述 biomaterial review • 上一篇    下一篇

不同年龄阶段膝关节有限元计算模型的材料特性分析

陈  静1,张  楠2,孟庆华1,鲍春雨2   

  1. 天津体育学院,1体育经济管理学院,2社会体育学院,天津市   301617
  • 收稿日期:2024-07-01 接受日期:2024-08-28 出版日期:2025-12-08 发布日期:2025-01-17
  • 通讯作者: 孟庆华,教授,天津体育学院体育经济管理学院,天津市 301617
  • 作者简介:陈静,女,1976年生,天津市人,汉族,博士,副教授,主要从事膝关节有限元及智能计算方面的研究。
  • 基金资助:
    国家自然科学基金项目(11372223,11102135),项目负责人:孟庆华;天津市自然科学基金项目(17JCZDJC36000),项目负责人:鲍春雨;天津市自然科学基金项目(18JCZDJC35900),项目负责人:孟庆华;国家体育总局科技创新项目(22KJCX077),项目负责人:鲍春雨;天津市研究生创新项目(2022SKYZ318),项目负责人:张楠

Material characterization of finite element computational models of knee joints at different ages

Chen Jing1, Zhang Nan2, Meng Qinghua1, Bao Chunyu2   

  1. 1School of Economics Management, 2Academy of Social Sports, Tianjin University of Sport, Tianjin 301617, China
  • Received:2024-07-01 Accepted:2024-08-28 Online:2025-12-08 Published:2025-01-17
  • Contact: Meng Qinghua, Professor, School of Economics Management, Tianjin University of Sport, Tianjin 301617, China
  • About author:Chen Jing, PhD, Associate professor, School of Economics Management, Tianjin University of Sport, Tianjin 301617, China
  • Supported by:
    National Natural Science Foundation Project, No. 11372223, 11102135 (to MQH); Tianjin Natural Science Foundation Project, No. 17JCZDJC36000 (to BCY); Tianjin Natural Science Foundation Project, No. 18JCZDJC35900 (to MQH); Science and Technology Innovation Project of General Administration of Sport of China, No. 22KJCX077 (to BCY); Tianjin Graduate Innovation Project, No. 2022SKYZ318 (to ZN)

摘要:


文题释义:

弹性模量:是材料的一种力学性质,描述材料受到应力时的弹性变形程度。弹性模量越大,说明材料的弹性越好,即在受到应力后能够迅速恢复原状。在中年到老年阶段,膝关节中股骨、胫骨、腓骨、髌骨的弹性模量会随着年龄的增加而降低,进而回归到儿童时期的弹性模量。
泊松比:是材料的另一种力学性质,描述了材料在受到应力时沿着一个方向的收缩程度与沿着垂直方向的膨胀程度之比。


背景:有限元计算模型作为一种重要的工程分析技术已被广泛应用于生物工程研究的各个领域,然而,很少有文献介绍不同年龄阶段膝关节有限元计算模型每个解剖结构的材料性能,以满足不同的研究目的。

目的:在前人膝关节有限元研究的基础上,总结不同年龄阶段膝关节有限元计算模型的材料特性。
方法:英文检索词为“Knee,finite element,material selection,ligament injury,osteoarthritis,elderly,children,young people”等,中文检索词为“膝关节,有限元,材料选择,韧带损伤,骨关节炎,老年人,儿童,年轻人”等,分别检索中国知网、PubMed数据库,文献检索时限为1950-2024年,就纳入与排除标准,最终纳入108篇文献进行归纳总结。

结果与结论:儿童膝关节骨密度会随着年龄的增长而增加,在成年后达到峰值。中年到老年阶段,膝关节股骨、胫骨、腓骨、髌骨的弹性模量会随着年龄的增加而降低,进而回归到儿童时期的弹性模量。儿童与成年人软骨的弹性模量基本一致,而老年人的软骨弹性模量增大。随着年龄的增长,膝关节韧带的弹性模量会出现一定程度降低,但年轻人与老年人膝关节韧带的弹性模量无显著差异。随着年龄的增长,膝关节半月板机械完整性的丧失会损害组织的生物力学功能,扰乱组织有效承载和传递的各向异性生物力学响应。膝关节有限元建模可以深入了解膝关节的生物力学特性,开发新的植入材料、预测膝关节疾病、改进手术技术,并指导患者康复锻炼。

https://orcid.org/0009-0007-8015-6783 (陈静) 

中国组织工程研究杂志出版内容重点:生物材料;骨生物材料;口腔生物材料;纳米材料;缓释材料;材料相容性;组织工程

关键词: 膝关节, 有限元计算模型, 材料特性, 不同年龄段, 弹性模量, 工程化材料

Abstract: BACKGROUND: Finite element modeling, as an important engineering analysis technique, has been widely used in various fields of bioengineering research. However, there is little literature on what material properties should be selected for each anatomical structure of the knee joint finite element modeling at different ages for different research purposes. 
OBJECTIVE: To summarize the material properties of knee joint finite element models at different ages based on previous knee joint finite element studies. 
METHODS: The search terms were “knee, finite element, material selection, ligament injury, osteoarthritis, elderly, children, young people” in Chinese and English. Articles were searched on CNKI and PubMed, with a timeframe of 1950 to 2024. According to inclusion and exclusion criteria, 108 articles were finally included for summary.  
RESULTS AND CONCLUSION: Children's knee bone density will increase with age, reaching peaks in adulthood. From middle-aged to the age, the elastic modulus of knee joint femur, tibia, fibula, and patella will decrease with age, and then return to the elastic modulus of childhood. The elastic modulus of children and adult cartilage is basically the same, and the elastic modulus of the elderly increases. With the increase of age, the elastic modulus of the knee ligament will decrease to a certain extent, but there is no significant difference in the elastic modulus of the knee ligament of young people and the elderly. With the increase of age, the loss of mechanical integrity of the knee meniscus will damage the biomechanical function of the tissue and disturb the various anisotropic biomechanical responses that are effectively carried and transmitted by the tissue. Knee joint finite element modeling can be used to deeply understand the biomechanical characteristics of the knee joints, develop new implanted materials, predict knee joint diseases, improve surgical technology, and guide patients to rehabilitate exercise. 

Key words: knee joint, finite element computational modeling, material property, different ages, elastic modulus, engineered material

中图分类号: