MRI evaluation of multifidus muscles in adolescent idiopathic scoliosis
MRI evaluation of multifidus muscles in adolescent idiopathic scoliosis
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DOI：
10.1007/s002470050607
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发表时间：
1999-05-01
影响因子：
2.3
通讯作者：
Metreweli, C
中科院分区：
文献类型：
--
作者：
Chan, YL;Cheng, JCY;Metreweli, C
背景。多裂肌在青少年特发性脊柱侧凸的弯曲发生和进展中的作用尚未完全明确，并且对于异常的一侧存在争议。 目的。通过MRI评估青少年特发性脊柱侧凸主曲线顶点的多裂肌，以确定凸侧或凹侧的多裂肌是否异常以及与弯曲严重程度的关系。材料和方法。将 46 名青少年特发性脊柱侧凸患者分为两组，使用带有协同脊柱线圈的 1.5-T MR 扫描仪进行研究，并采用在主要脊柱侧凸曲线顶点获得的改良 STIR（短 tau 反转恢复）轴向序列。结果。任何患者的凸侧多裂肌均未出现高信号变化。在第一组中，18 名患有严重或快速进展曲线的患者中有 16 名显示曲线顶点凹侧的多裂肌信号强度增加。 II组中，15例轻度弯曲（Cobb角10-30度）的患者中，4例凹侧多裂肌信号强度增加；在13个具有更严重弯曲（Cobb角大于30度）的13个中，10个凹侧的多裂肌信号强度增加。结论。脊柱侧凸曲线顶点的凹侧多裂肌形态异常。异常信号变化与曲线严重程度之间也存在显着关联。
Background. The role of the multifidus muscles in the initiation and progression of curve in adolescent idiopathic scoliosis is not fully understood and controversy exists as to the side of the abnormality.Objective. To evaluate on MRI the multifidus muscles at the apex of the major curve in adolescent idiopathic scoliosis to ascertain if the multifidus muscles on the convex or concave side are abnormal and the relationship to curve severity. Materials and methods. Forty-six patients with adolescent idiopathic scoliosis, separated into two groups, were studied using a 1.5-T MR scanner with the synergy spine coil, employing a modified STIR (short tau inversion recovery) axial sequence obtained at the apex of the major scoliotic curve.Results. No hyperintense signal change was demonstrated in the convex side multifidus muscles in any patient. In group I, 16 of 18 patients with severe or rapidly progressive curve showed increase in signal intensity in the multifidus muscle on the concave side of the apex of the curve. In group II, of the 15 patients with mild curve (Cobb angle 10-30 degrees), 4 had increased signal intensity in the multifidus muscle on the concave side; of the 13 with more severe curve (Cobb angle greater than 30 degrees), 10 had increase in multifidus signal intensity on the concave side.Conclusions. The concave-side multifidus muscle at the apex of a scoliotic curve was morphologically abnormal. A significant association between abnormal signal change and curve severity was also established.