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轴负荷和位置对腰椎狭窄的影响:使用新的轴负荷装置进行MRI研究

Xingyu Fang^1,2,3, Mengqiu Cui^1,2, Yingwei Wang²

¹Medical School of Chinese PLA, Beijing, 100853, China.

Skeletal radiology

|June 7, 2024

概括

轴负荷和腰部延伸会使脊柱狭窄变得更糟. 延伸的轴承负荷最大限度地加剧了狭窄,但 psoas-relaxed位置轴承负荷MRI可能适合一些患者.

科学领域:

脊柱成像和生物力学
整形外科手术整形外科手术
放射学放射学是一门学科.

背景情况:

腰椎脊柱狭窄症 (LSS) 是一种由脊柱通道狭窄而形成的疾病.
了解影响LSS的生物力学因素对于诊断和治疗至关重要.
之前的研究还没有完全阐明轴承负载和脊柱位置对腰部结构的联合影响.

研究的目的:

调查轴负荷和不同腰部位置对腰部结构和脊柱狭窄的影响.
为了评估长度囊横截面积的变化,脊椎通道直径,圆盘高度和带厚度.

主要方法:

一种新的轴负载装置与磁共振成像 (MRI) 一起使用.
40名患者接受了四次MRI检查:心肌松,延伸,心肌松与轴承负荷,延伸与轴承负荷.
测量包括持续囊面积,斜腰脊椎通道直径,圆盘高度,带膜厚度,以及L3-4,L4-5,L5-S1水平的腰椎位角.

主要成果:

轴承负荷在所有腰部水平上显著降低了持续性囊的截面面积,无论是在松的位置还是伸展的位置.
仅仅延伸就减少了L3-4的持续囊面积,而延伸中的轴承负荷则在所有水平上最大限度地减少了它.
斜腰脊椎通道直径和圆盘高度随着轴向负荷和所有水平的延伸而显著减少.

结论:

轴负荷和腰部延伸都会加剧腰部脊柱狭窄症.
在伸展的位置上的轴负荷最大限度地加剧了脊柱狭窄.
对于患有延伸不耐受症的患者,在心肌松动位置的轴负MRI可能是一个可行的替代方案.

关键词:

轴承负载轴承负载轴承负载脊椎神经区域的背部神经区域.磁共振成像技术的使用患者的位置定位.脊柱狭窄症脊柱狭窄症脊柱狭窄症

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