Relationship between MRI redundant nerve roots and lumbar spinal canal stenosis
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摘要:
目的 探讨腰椎管狭窄与马尾神经冗余征的关系。 方法 回顾性分析2015年3月~2017年12月160例腰椎管狭窄的患者信息,将其分为冗余组和非冗余组。测量狭窄处椎管前后径、狭窄层面硬膜囊面积、马尾神经冗余相对长度等数据;记录性别、年龄、腰椎管最狭窄的位置、狭窄处突起是否锐利、是否多节段狭窄等参数。统计上述变量是否与马尾神经冗余征及马尾神经冗余相对长度相关。 结果 不同马尾神经冗余征的性别、年龄、腰椎管最狭窄的位置、狭窄层面硬膜囊面积、狭窄处突起锐利、多节段狭窄等变量的差异均有统计学意义(P<0.05);除腰椎管多节段狭窄(P<0.01),不同性别、狭窄处是否突起锐利、狭窄处椎管前后径的马尾神经冗余相对长度差异无统计学意义(P>0.05)。 结论 马尾神经冗余是一种与腰椎管狭窄相关的MRI征象,其中性别、年龄、腰椎管多节段狭窄、狭窄层面硬膜囊面积、腰椎管最狭窄的位置、狭窄处锐利突起等均是其危险因素。 Abstract:Objective To explore the relationship between various factors of lumbar spinal canal stenosis and redundant nerve roots. Methods A total of 160 patients with lumbar spinal stenosis from March 2015 to December 2017 were included. The patients were divided into redundant group and non redundant group.The front to rear with lumbar stenosis, scar area of narrow, relatively long redundant caudal nerve etc data were measured. Gender, age, the narrowest position of lumbar spinal canal, the protuberance, and multinode stenosis were recorded. The correlation between the above variables with redundant nerve roots and relatively long redundant caudal nerve were analyzed. Result Gender, age, the narrowest position of lumbar spinal canal, Scar area of narrow, sharp protuberance on narrow area, multinode stenosis were related with cauda equina redundant (P<0.05). Gender, sharp protuberance on narrow area, diameter of front to rear with lumbar stenosis were not related with relatively long redundant caudal nerve, except for multisegmental stenosis (P<0.01). Conclusion Redundant nerve roots is a MRI feature associated with lumbar spinal canal stenosis. Gender, age, the narrowest position of lumbar spinal canal, scar area of narrow, sharp protuberance on narrow area, multinode stenosis are risk factors. -
Key words:
- lumbar stenosis /
- redundant nerve roots /
- MRI
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表 1 冗余组和非冗余组多参数的统计分析
分类 冗余组(n=78) 非冗余组(n=82) χ2/t P 性别(n, %) χ2=6.320 0.016 女 40(51.3%) 26(31.7%) 男 38(48.7%) 56(68.3%) 年龄(岁, Mean±SD) 69±9.888 54.66±16.617 t=6.592 0.000 腰椎管狭窄的位置(n, %) χ2=19.639 0.000 腰1/2 0(0%) 0(0%) 腰2/3 3(3.8%) 4(4.87 %) 腰3/4 28(35.9%) 6(7.31%) 腰4/5 45(57.7%) 68(82.9%) 腰5/骶1 2(2.5%) 4(4.87%) 狭窄层面硬膜囊面积(mm2, Mean±SD) 57.95±27.724 80.29±29.166 t=4.962 0.000 突出是否锐利(n, %) χ2=23.761 0.000 是 42(53.8%) 14(17.1%) 否 36(46.2%) 68(82.9%) 是否多节段狭窄(n, %) χ2=19.850 0.000 是 54(69.2%) 19(23.2%) 否 24(30.8%) 63(76.8%) 表 2 冗余马尾神经相对长度与相关参数的统计分析
分类 例数 冗余马尾神经
相对长度
(cm, Mean±SD)t P 性别 0.990 0.325 男 38 1.94±0.69 女 40 2.07±0.42 狭窄处突起是否锐利 0.360 0.720 是 42 2.02±0.56 否 36 1.98±0.59 腰椎管是否多节段狭窄 13.020 0.000 是 54 2.30±0.20 否 24 1.42±0.40 狭窄处椎管前后径(mm) 0.870 0.387 >10 20 2.11±0.35 ≤10 58 1.99±0.58 -
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