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首页> 外文期刊>Acta Neurochirurgica >Decompressive surgery for lumbar spinal stenosis across the Atlantic: a comparison of preoperative MRI between matched cohorts from the US and Norway
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Decompressive surgery for lumbar spinal stenosis across the Atlantic: a comparison of preoperative MRI between matched cohorts from the US and Norway

机译：大西洋腰椎狭窄的解压缩手术：美国和挪威匹配队列之间的术前MRI的比较

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Abstract Background There are no uniform guidelines regarding when to operate for Lumbar Spinal Stenosis (LSS). As we apply findings from clinical research from one population to the next, elucidating similarities or differences provides important context for the validity of extrapolating clinical outcomes. The aim of this study was to compare the morphological severity of lumbar spinal stenosis on preoperative MRI in patients undergoing decompressive surgery in Boston, USA, and Trondheim, Norway. Methods In this observational retrospective study, we compared morphological severity on MRI before surgical treatment between two propensity score-matched patient populations with single or two-level symptomatic LSS. We assessed the radiographic severity of LSS utilizing the Schizas classification (grade A to D). Results Following propensity score matching, demographics are balanced. In the Trondheim cohort, two levels decompression were present in 36.2% of the patients vs. 41.9% in Boston, ( p ?=?0.396). There was no significant difference in grades A to D concerning central stenosis ( p ?=?0.075). When dichotomized in mild/moderate (A/B) and severe /extreme (C/D), there were no significant differences in the rate of levels operated for high-grade stenosis (C/D), 67.6% in the Boston group compare to 78.1% in the Trondheim group ( p ?=?0.088). Conclusions Trondheim, Norway, and Boston, US, have similar radiographic thresholds of LSS for offering surgery.
机译：抽象背景没有关于何时操作腰椎狭窄（LSS）的何时运行的统一指导方针。当我们从一个人口施用临床研究的结果，阐明相似之处或差异为外推临床结果的有效性提供了重要的背景。本研究的目的是在波士顿，美国和特隆赫姆，挪威进行减压手术患者的术前MRI对术前MRI的形态严重程度。方法在该观察到重点研究中，我们在两种倾向分数匹配患者群体与单一或两级症状LSS之间的手术治疗之前对MRI的形态严重程度进行了比较。我们评估了利用Schizas分类的LSS的射线照相严重程度（A级至D）。结果遵循倾向得分匹配，人口统计学是平衡的。在Trondheim队列中，在波士顿的36.2％的患者中，36.2％的患者中存在两种水平减压（P？= 0.396）。关于中央狭窄的A至D等级没有显着差异（p？= 0.075）。当在轻度/中等（A / B）和严重/极端（C / D）中的二分化时，在波士顿集团比较的高级狭窄（C / D）的水平率没有显着差异，67.6％ Trondheim组的78.1％（p？= 0.088）。结论Trondheim，Norway和Boston，US，具有类似的LSS放射线阈值，用于提供手术。

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