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Updated: Apr 30, 2026

Precision Measurements and Parametric Models of Vertebral Endplates

Precision Measurements and Parametric Models of Vertebral Endplates

Published on: September 17, 2019

多杆后椎椎仪器仪表构造:对10名患有复杂椎椎病理的患者进行了生物机械分析和初始病例系列

Andrew P Collins¹, Muzammil Mumtaz², Sudharshan Tripathi²

¹Department of Orthopaedics and Sports Medicine, University of Washington, Seattle, WA, USA.

The spine journal : official journal of the North American Spine Society

|September 29, 2024

概括

多杆结构 (3和4杆) 有效地稳定了腰 (OC) 接口,与2杆结构相比,减少了杆和螺丝应力. 临床结果是有利的,在一个小患者系列中没有出现失败.

科学领域:

脊柱外科手术脊柱外科手术
骨科生物力学骨科生物力学
椎脊柱仪器仪表仪器仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表

背景情况:

在各种病理中,腰结 (OC) 结节的稳定至关重要.
由于骨表面有限,在OC结处实现稳定的结合是具有挑战性的.

研究的目的:

评估OC结位稳定多杆结构的生物力学和临床结果.
评估一种新型的尾板,其模块化郁金香头以单头和双头的配置.

主要方法:

生物机械分析使用经过验证的头 - 宫有限元素 (FE) 模型.
在多方向负载下模拟4杆配置 (2杆-Ti,2杆-CoCr,3杆,4杆).
成年患者的回顾性临床病例系列,这些患者经历了后宫多杆结构.

主要成果:

与2杆结构相比,多杆结构 (3杆和4杆) 显示了较低的初级杆应力.
用多杆构造,特别是4杆配置来减少尾和C4螺丝应力.
临床系列在10名患者中没有显示仪器仪表或相邻部分故障,平均随访时间为1.58年.

结论:

使用新型尾板的多杆结构 (3和4杆) 是安全有效的OC结位稳定.
FE分析支持通过多杆结构减少杆和螺杆应力.
需要进一步的临床研究来证实多杆结构在OC连接点固定中的实用性.

关键词:

大西洋的轴心不稳定性有限元素分析的研究.多个杆的多个杆.头的板块在头的板块.腰椎不稳定性腰椎不稳定性尖的宫结节.

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