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使用三维有限元素模型评估青少年异常学脊椎病的骨矿物质密度:一项回顾性研究

Chaofan Han¹, Chaochao Zhou², Hanwen Zhang¹

¹Department of Orthopedic Surgery, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China.

Journal of orthopaedic surgery and research

|December 7, 2023

概括

青少年异常学脊椎病 (AIS) 患者在脊柱下面的骨矿物质密度 (BMD) 呈现下降. 三维有限元素建模准确地测量AIS脊椎骨质量,有助于手术规划.

科学领域:

整形外科整形外科整形外科
生物医学工程生物医学工程
放射学放射学是一门学科.

背景情况:

青少年异常学脊椎病 (AIS) 经常与骨质疏松症和骨质疏松症有关,增加并发症风险.
在AIS中了解脊椎骨矿物质密度 (BMD) 对于管理相关的骨状况至关重要.

研究的目的:

在患有AIS的患者中,确定每个脊椎体的特定骨矿物密度 (BMD).
利用基于3D重建的生物力学有限元模型进行精确的BMD评估.

主要方法:

对56名AIS患者的回顾性分析.
从CT扫描中重建的3D脊椎模型,将其成有限元素用于骨损伤评估.
生物机械有限元建模用于评估脊椎骨硬化.

主要成果:

主曲线的平均科布角度为88.6°,平均形角度为36.8°.
脊柱的整体体质量平均为0.83g/cm2,最高的是顶部的凸侧 (0.98g/cm2).
尾椎骨质量显示与年龄和身高有负相关性;没有显著的侧对侧骨质量差异.

结论:

3D有限元素建模为AIS中BMD测量提供了可靠和准确的方法.
患有AIS的患者从脊柱上部到下部的骨质量逐渐下降.
研究结果支持改善手术规划,螺丝轨迹选择和脊柱结石治疗中的生物力学分析.

关键词:

青少年的异常学变脊椎病变.骨矿物质密度骨矿物质密度计算机断层扫描 (CT) 是一种计算机断层扫描.有限元素模型的模型.骨质疏松症是一种骨质疏松症.

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