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骨质疏松和小骨固定的短可扩展翅膀接:在3D打印的心脏关节重建模型中验证

Chia-Hung Tsai^1,2, Shao-Fu Huang^1,3, Rong-Chen Lin¹

¹Department of Biomedical Engineering, National Yang Ming Chaio Tung University, Taipei 112, Taiwan.

Journal of functional biomaterials

|October 28, 2025

概括

一种具有可扩展翅膀的新型接可以在软弱或小骨头中提供卓越的固定. 这种新设计显著提高了拉出强度,解决了当前在具有挑战性的骨科修复中的局限性.

科学领域:

骨科生物力学骨科生物力学
生物材料工程是生物材料的工程.
手术器械创新的创新手术器械的创新

背景情况:

接对于肌和带的修复至关重要.
目前的器面临着在骨质疏松性骨中的固定强度和有限的骨体积方面的挑战.
现有的设计可以导致骨穿透和皮层接触不足.

研究的目的:

开发和评估一种新的短可扩展翼 (SEW) 接.
为了增强抗拉力和固定稳定性,特别是在受损的骨条件下.
将SEW的性能与传统和现有的固定方法进行比较.

主要方法:

开发了一种由Ti6Al4V制成的新型SEW接,具有可部署的翼机制.
使用CT衍生骨性质进行有限元分析 (FEA),以评估骨内移位和负载转移.
在人造骨替代品 (正常和骨质疏松症) 上进行机械测试,以确定静态和循环拉出强度.
在3D打印的解剖模型中的性能评估,用于心脏关节带重建.

主要成果:

FEA指出,SEW的骨内移位减少,负载转移改善.
与对照组相比,在正常骨 (581 N) 和骨质疏松性骨 (377 N) 中观察到明显更高的静态拉出强度 (p < 0.05).
在循环负载后,SEW固定强度增加了25-56%,并且在带重建模型中显示几乎是板固定强度的两倍.

结论:

通过其可部署的翅膀机制,SEW接 effectively有效地提高了拉出阻力.
它克服了骨质疏松骨和小骨体积的传统的局限性,例如心脏过程.
在需要坚固固定的骨科修复中,SEW显示出改善临床翻译的巨大潜力.

关键词:

通过3D打印打印.在心脏关节关节 (Coracoclavicular) 中有关骨质疏松症的骨质疏松症.这是一个拉出来的拉出来.线 anchor 线线在

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