Correlations between the Cross-Sectional Area and Moment Arm Length of the Erector Spinae Muscle and the Thickness of the Psoas Major Muscle as Measured by MRI and the Body Mass Index in Lumbar Degenerative Kyphosis Patients
Correlations between the Cross-Sectional Area and Moment Arm Length of the Erector Spinae Muscle and the Thickness of the Psoas Major Muscle as Measured by MRI and the Body Mass Index in Lumbar Degenerative Kyphosis Patients
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腰椎退行性后凸患者的竖脊肌横截面积和力臂长度与腰大肌厚度（MRI 测量）和体重指数的相关性
DOI：
10.3348/jkrs.2006.54.3.203
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发表时间：
2006
影响因子：
--
通讯作者：
Sangho Lee
中科院分区：
文献类型：
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作者：
H. Lee;Sang Jin Lee;Sangho Lee
目的：腰椎退行性后凸症（LDK）是扁背综合征的一个亚群，这是一种由脊柱退变引起的疾病。据报道，LDK是“东方”国家农业地区腰椎畸形的最常见原因。我们通过统计分析探讨了竖脊肌横截面积（CSA）和力臂长度（MAL）与腰肌大肌（PT）厚度和身体质量指数（BMI）之间的关系，并试图表明这些变量在诊断LDK中的关键作用。材料和方法：从2004年7月到2005年4月，我们回顾性分析了17例行前路腰椎椎体间融合术（ALIF）并后路稳定的LDK患者。我们在躯干第四至第五椎骨（L4/5）的横截面MR图像上测量了CSA和MAL。MAL定义为竖脊肌中心与椎体中心之间的前后距离。在CSA、MAL、PT和BMI方面，LDK组与匹配的（根据年龄和性别）对照组进行了比较研究。结果：17例LDK患者均为女性，年龄：62.5±4.93岁，身高：157±6.19 cm，体重：55.59±4.7 kg, BMI: 22.58±2.08 kg/ m2。对照组患者均为女性，年龄63.6±2.27岁，身高156±5.05 cm，体重59.65±7.39 kg, BMI 24.38±2.94 kg/ m2。Spearman’s rho表明LDK患者的CSA与BMI呈正相关（rho=0.49, p=0.046）， MAL与BMI呈正相关（rho=0.808, p=0.000）， CSA与PT呈正相关（rho=0.566, p=0.018）。在CSA与MAL方面，两组呈正相关（rho=0.67, p=0.000， LDK组MAL=0.023CSA+5.454; rho=0.564, p=0.018，对照组MAL=0.02CSA+5.832，经线性回归分析）。独立t检验显示，两组CSA和MAL的平均值有统计学差异（p=0.000）。结论：本研究表明LDK患者不仅存在竖脊肌萎缩，还存在腰大肌萎缩和短MAL，这是由于老年患者下背负荷增加而造成的。与BMI一起，MR图像上CSA、MAL和PT的测量提供了LDK患者肌肉萎缩的尺寸和严重程度的客观评估。
Purpose: Lumbar degenerative kyphosis (LDK) is a subgroup of the flatback syndrome, which is a condition caused by spinal degeneration. LDK is reported to be the most frequent cause of lumbar spine deformity in the farming districts of the ‘oriental’ countries. We investigated the relationship between the cross-sectional area (CSA) and the moment arm length (MAL) of the erector spinae muscle and the thickness of the psoas major muscle (PT) and the body mass index (BMI) by performing statistical analysis, and we tried to show the crucial role of these variables for diagnosing LDK. Materials and Methods: From July 2004 to April 2005, we retrospectively reviewed 17 LDK patients who had undergone anterior lumbar interbody fusion (ALIF) with posterior stabilization. We measured both the CSA & MAL on the transverse cross-sectional MR image of the trunk at the fourth to fifth vertebrae (L4/5). The MAL was defined as the anterior-posterior distance between the center of the erector spinae muscle and that of the vertebral body. A comparative study was undertaken between the LDK group and the matched (according to age & gender) control group with regard to the CSA, MAL, PT and BMI. Results: The 17 LDK patients were all females [age: 62.5±4.93 years, height: 157±6.19 cm, weight: 55.59±4.7 kg, and BMI: 22.58±2.08 kg/m 2 ]. The control group patients were all females [age: 63.6±2.27 years, height: 156±5.05 cm, weight: 59.65±7.39 kg and BMI: 24.38 ±2.94 kg/m 2 ]. Spearman’s rho indicated a positive association between the CSA & BMI (rho=0.49, p=0.046), between the MAL & BMI (rho=0.808, p=0.000) and between the CSA & PT (rho=0.566, p=0.018) in the LDK patients. In terms of the CSA versus MAL, there was a positive association in both groups (rho=0.67, p=0.000, MAL=0.023CSA+5.454 in the LDK group; rho=0.564, p=0.018, MAL=0.02CSA+5.832 in the control group with using linear regression analysis). Independent t-tests revealed that both groups had statistically different mean values (p=0.000) in terms of the CSA & MAL. Conclusion: This study showed that the patients with LDK not only had atrophied erector spinae muscles, but also atrophied psoas major muscles and short MALs, which is harmful because of the increased lower back load in the aged patients. Along with BMI, measurement of the CSA, MAL & PT on the MR images provides an objective assessment of the dimension & severity of the muscle atrophy in the LDK patients.
男性躯干肌肉横截面积和磁共振图像参数与等速和心理物理举重力量以及静态背部肌肉耐力的关联。
DOI：
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发表时间：
1997
期刊：
Journal of spinal disorders.
影响因子：
--
作者：
Gibbons,LE;Latikka,P;Videman,T;Manninen,H;Battie,MC
通讯作者：
Battie,MC