Numerical analysis research on the impact of tibial tray fixation peg structure on initial fixation stability in total knee arthroplasty

Yuanxu Ling; Jianian Han; Zhifeng Zhang; Yinghu Peng; Jing Zhang; Zhenxian Chen; Zhongmin Jin

doi:10.7507/1001-5515.202506082

Numerical analysis research on the impact of tibial tray fixation peg structure on initial fixation stability in total knee arthroplasty

Yuanxu Ling
, Jianian Han
, Zhifeng Zhang
, Yinghu Peng
, Jing Zhang
, Zhenxian Chen
, Zhongmin Jin

Chang'an University
Affiliated Hospital of Inner Mongolia Medical University
Shenzhen Institute of Advanced Technology
Southwest Jiaotong University

Research output: Contribution to journal › Article › peer-review

Abstract

本文为探究后稳定型（PS）膝关节假体胫骨托盘固定钉结构对其初期固定稳定性的影响，构建了PS型全膝关节置换术（TKA）的有限元模型和微动预测模型，对比研究了圆柱加半球形、圆柱加圆锥形、六棱柱形和十字形四种PS型膝关节假体胫骨托盘固定钉设计下胫骨近端范式等效应力和骨—假体固定界面微动的差异。研究结果显示，在水平行走活动膝关节最大受力时刻，胫骨托盘有无固定钉设计的胫骨范式等效应力无明显差异，但胫骨托盘有固定钉设计的假体固定界面微动峰值均显著降低了，其中十字形固定钉的微动抑制效果最为明显。在下蹲活动膝关节最大屈曲角时刻，胫骨托盘有固定钉设计的胫骨范式等效应力明显低于无固定钉设计的，同时假体固定界面的微动峰值也大幅减小了。整体来看，十字形固定钉设计表现出最佳的固定稳定性，能有效地降低假体固定界面的松动风险。本文建议非骨水泥PS型膝关节假体胫骨托盘背部采用圆柱柄联合锯齿形龙骨和十字固定钉的组合设计。本文为非骨水泥PS型膝关节假体通过优化胫骨托盘背部设计提高其初期固定稳定性提供了重要的参考依据。.

Original language	English
Pages (from-to)	1265-1272
Number of pages	8
Journal	Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi
Volume	42
Issue number	6
DOIs	https://doi.org/10.7507/1001-5515.202506082
State	Published - 25 Dec 2025
Externally published	Yes

Keywords

Fixation peg design
Micromotion
Posterior-stabilized knee prosthesis
Tibial tray
Total knee arthroplasty
Von Mises stress

Access to Document

10.7507/1001-5515.202506082

Cite this

Ling, Y., Han, J., Zhang, Z., Peng, Y., Zhang, J., Chen, Z., & Jin, Z. (2025). Numerical analysis research on the impact of tibial tray fixation peg structure on initial fixation stability in total knee arthroplasty. Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi, 42(6), 1265-1272. https://doi.org/10.7507/1001-5515.202506082

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title = "Numerical analysis research on the impact of tibial tray fixation peg structure on initial fixation stability in total knee arthroplasty",

abstract = "本文为探究后稳定型（PS）膝关节假体胫骨托盘固定钉结构对其初期固定稳定性的影响，构建了PS型全膝关节置换术（TKA）的有限元模型和微动预测模型，对比研究了圆柱加半球形、圆柱加圆锥形、六棱柱形和十字形四种PS型膝关节假体胫骨托盘固定钉设计下胫骨近端范式等效应力和骨{\textemdash}假体固定界面微动的差异。研究结果显示，在水平行走活动膝关节最大受力时刻，胫骨托盘有无固定钉设计的胫骨范式等效应力无明显差异，但胫骨托盘有固定钉设计的假体固定界面微动峰值均显著降低了，其中十字形固定钉的微动抑制效果最为明显。在下蹲活动膝关节最大屈曲角时刻，胫骨托盘有固定钉设计的胫骨范式等效应力明显低于无固定钉设计的，同时假体固定界面的微动峰值也大幅减小了。整体来看，十字形固定钉设计表现出最佳的固定稳定性，能有效地降低假体固定界面的松动风险。本文建议非骨水泥PS型膝关节假体胫骨托盘背部采用圆柱柄联合锯齿形龙骨和十字固定钉的组合设计。本文为非骨水泥PS型膝关节假体通过优化胫骨托盘背部设计提高其初期固定稳定性提供了重要的参考依据。.",

keywords = "Fixation peg design, Micromotion, Posterior-stabilized knee prosthesis, Tibial tray, Total knee arthroplasty, Von Mises stress",

author = "Yuanxu Ling and Jianian Han and Zhifeng Zhang and Yinghu Peng and Jing Zhang and Zhenxian Chen and Zhongmin Jin",

year = "2025",

month = dec,

day = "25",

doi = "10.7507/1001-5515.202506082",

language = "英语",

volume = "42",

pages = "1265--1272",

journal = "Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi",

issn = "1001-5515",

publisher = "West China Hospital, Sichuan Institute of Biomedical Engineering",

number = "6",

}

Ling, Y, Han, J, Zhang, Z, Peng, Y, Zhang, J, Chen, Z & Jin, Z 2025, 'Numerical analysis research on the impact of tibial tray fixation peg structure on initial fixation stability in total knee arthroplasty', Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi, vol. 42, no. 6, pp. 1265-1272. https://doi.org/10.7507/1001-5515.202506082

Numerical analysis research on the impact of tibial tray fixation peg structure on initial fixation stability in total knee arthroplasty. / Ling, Yuanxu; Han, Jianian; Zhang, Zhifeng et al.
In: Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi, Vol. 42, No. 6, 25.12.2025, p. 1265-1272.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Numerical analysis research on the impact of tibial tray fixation peg structure on initial fixation stability in total knee arthroplasty

AU - Ling, Yuanxu

AU - Han, Jianian

AU - Zhang, Zhifeng

AU - Peng, Yinghu

AU - Zhang, Jing

AU - Chen, Zhenxian

AU - Jin, Zhongmin

PY - 2025/12/25

Y1 - 2025/12/25

N2 - 本文为探究后稳定型（PS）膝关节假体胫骨托盘固定钉结构对其初期固定稳定性的影响，构建了PS型全膝关节置换术（TKA）的有限元模型和微动预测模型，对比研究了圆柱加半球形、圆柱加圆锥形、六棱柱形和十字形四种PS型膝关节假体胫骨托盘固定钉设计下胫骨近端范式等效应力和骨—假体固定界面微动的差异。研究结果显示，在水平行走活动膝关节最大受力时刻，胫骨托盘有无固定钉设计的胫骨范式等效应力无明显差异，但胫骨托盘有固定钉设计的假体固定界面微动峰值均显著降低了，其中十字形固定钉的微动抑制效果最为明显。在下蹲活动膝关节最大屈曲角时刻，胫骨托盘有固定钉设计的胫骨范式等效应力明显低于无固定钉设计的，同时假体固定界面的微动峰值也大幅减小了。整体来看，十字形固定钉设计表现出最佳的固定稳定性，能有效地降低假体固定界面的松动风险。本文建议非骨水泥PS型膝关节假体胫骨托盘背部采用圆柱柄联合锯齿形龙骨和十字固定钉的组合设计。本文为非骨水泥PS型膝关节假体通过优化胫骨托盘背部设计提高其初期固定稳定性提供了重要的参考依据。.

AB - 本文为探究后稳定型（PS）膝关节假体胫骨托盘固定钉结构对其初期固定稳定性的影响，构建了PS型全膝关节置换术（TKA）的有限元模型和微动预测模型，对比研究了圆柱加半球形、圆柱加圆锥形、六棱柱形和十字形四种PS型膝关节假体胫骨托盘固定钉设计下胫骨近端范式等效应力和骨—假体固定界面微动的差异。研究结果显示，在水平行走活动膝关节最大受力时刻，胫骨托盘有无固定钉设计的胫骨范式等效应力无明显差异，但胫骨托盘有固定钉设计的假体固定界面微动峰值均显著降低了，其中十字形固定钉的微动抑制效果最为明显。在下蹲活动膝关节最大屈曲角时刻，胫骨托盘有固定钉设计的胫骨范式等效应力明显低于无固定钉设计的，同时假体固定界面的微动峰值也大幅减小了。整体来看，十字形固定钉设计表现出最佳的固定稳定性，能有效地降低假体固定界面的松动风险。本文建议非骨水泥PS型膝关节假体胫骨托盘背部采用圆柱柄联合锯齿形龙骨和十字固定钉的组合设计。本文为非骨水泥PS型膝关节假体通过优化胫骨托盘背部设计提高其初期固定稳定性提供了重要的参考依据。.

KW - Fixation peg design

KW - Micromotion

KW - Posterior-stabilized knee prosthesis

KW - Tibial tray

KW - Total knee arthroplasty

KW - Von Mises stress

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DO - 10.7507/1001-5515.202506082

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JO - Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi

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ER -

Numerical analysis research on the impact of tibial tray fixation peg structure on initial fixation stability in total knee arthroplasty

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Keywords

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