中心或偏离中心的后路腰椎椎间融合器和经椎间隙腰椎椎间融合器固定架下沉

IF 1.9 4区 工程技术 Q2 Engineering
Seong-Won Kim, Hyun-Yong Jeong
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引用次数: 0

摘要

腰椎椎间融合器已被广泛用于恢复脊柱排列。然而,人们一直在猜测单个长的经椎间孔腰椎椎体间融合器是否与一对短的后路腰椎椎体间融合器一样能有效防止过度下沉,以及如果将后路和经椎间孔腰椎椎体间融合器偏离终板中心向骺环放置,它们的下沉程度如何。因此,本研究建立了腰椎椎体间融合器和椎体(包括终板和骺环)的有限元模型,并进行了有限元模拟,以估算一对后路腰椎椎体间融合器和一个经椎间孔腰椎椎体间融合器不仅放置在终板中心,而且偏离中心的下沉情况。有限元模拟结果表明,与一对后路腰椎椎体间融合器相比,长的经椎间孔腰椎椎体间融合器在减少下沉方面同样有效,甚至更有效。此外,结果还显示,后路和经椎间孔腰椎椎体间融合器在偏离中心和靠近骺环时,下沉程度都较小。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Subsidence of Center or Off-Center Posterior Lumbar Interbody Fusion and Transforaminal Lumbar Interbody Fusion Cages

Subsidence of Center or Off-Center Posterior Lumbar Interbody Fusion and Transforaminal Lumbar Interbody Fusion Cages

Lumbar interbody fusion cages have been widely used to restore spine alignment. However, it has been speculated whether a single long transforaminal lumbar interbody fusion cage is as effective as a pair of short posterior lumbar interbody fusion cages in preventing excessive subsidence, and how much posterior and transforaminal lumbar interbody fusion cages subside if they are placed off the center of the endplate towards the epiphyseal ring. Thus, in this study finite element models of the lumbar interbody fusion cages and the vertebrae, including the endplate and the epiphyseal ring, were created, and finite element simulations were conducted to estimate the subsidence of a pair of posterior lumbar interbody fusion cages and a single transforaminal lumbar interbody fusion cage not only placed at the center of the endplate but also placed off-center. The finite element simulation results indicated that a long transforaminal lumbar interbody fusion cage was equally or more effective in reducing subsidence compared to a pair of posterior lumbar interbody fusion cages. Furthermore, the results also showed that both posterior and transforaminal lumbar interbody fusion cages resulted in less subsidence when placed off-center and closer to the epiphyseal ring.

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来源期刊
CiteScore
4.10
自引率
10.50%
发文量
115
审稿时长
3-6 weeks
期刊介绍: The International Journal of Precision Engineering and Manufacturing accepts original contributions on all aspects of precision engineering and manufacturing. The journal specific focus areas include, but are not limited to: - Precision Machining Processes - Manufacturing Systems - Robotics and Automation - Machine Tools - Design and Materials - Biomechanical Engineering - Nano/Micro Technology - Rapid Prototyping and Manufacturing - Measurements and Control Surveys and reviews will also be planned in consultation with the Editorial Board.
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