The position of the aorta relative to the spine in patients with left thoracic scoliosis - A comparison with normal patients
The position of the aorta relative to the spine in patients with left thoracic scoliosis - A comparison with normal patients
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DOI：
10.1097/brs.0b013e318059aeda
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发表时间：
2007-05-20
期刊：
影响因子：
3
通讯作者：
Sucato, Daniel J.
中科院分区：
文献类型：
--
作者：
Milbrandt, Todd A.;Sucato, Daniel J.
研究设计。分析轴向磁共振图像 (MRI)，识别左胸椎侧凸和正常患者的主动脉位置。目的。确定左胸椎侧凸患者主动脉的位置，并将这些结果与正常患者的结果进行比较。背景数据摘要。在前路脊柱融合过程中放置的螺钉和右胸椎脊柱侧凸的器械靠近主动脉，这主要是由于主动脉位于椎骨后外侧的左侧。尚无研究评估左胸椎脊柱侧凸的主动脉。方法。对所有 MRI 左胸椎侧凸患者（LTS 组）进行回顾性检查，并与正常直脊柱患者（N 组）进行比较。分析两组从 T4 到 L3 的轴向 MRI 图像，包括主动脉椎角 (AVA)，其中 0 度 = 主动脉直接横向于左侧，180 度 = 主动脉直接横向于右侧。结果。 LTS 组有 20 名患者，N 组有 43 名患者。LTS 组和 N 组之间的年龄（13.1 岁 vs. 14.0 岁）或性别（52% vs. 62% 女性）没有差异。与 N 组相比，LTS 组的主动脉在 T4 至 T11 水平（平均 70.1 度 vs 40.6 度）和 L3 水平（77.1 度 vs 70.9 度）处位于椎体更前面（较大的 AVA）（P < 0.05）。随着胸廓冠状 Cobb 角的增加，主动脉在 T8 和 T10 位置更偏向右侧（较大的 AVA）（P < 0.05）。在 LTS 组中，大于 40 度的曲线在顶端水平 (T7 -T10) 具有比 40 度曲线更大的 AVA（91.4 度对 57.7 度）。
Study Design. Analysis axial magnetic resonance images (MRIs) identifying the position of the aorta in left thoracic scoliosis and normal patients.Objectives. To determine the position of the aorta in patients with left thoracic scoliosis and to compare these findings with those seen in normal patients.Summary of Background Data. Screws placed during an anterior spinal fusion and instrumentation for right thoracic scoliosis are in proximity to the aorta, which is primarily due to the position of the aorta on the posterolateral left aspect of the vertebra. There are no studies that have evaluated the aorta in left thoracic scoliosis.Methods. A retrospective review of all patients with an MRI with left thoracic scoliosis (Group LTS) was performed and compared with patients with a normal straight spine (Group N). Axial MRI images from T4 to L3 in both groups were analyzed to include the aorta-vertebral angle (AVA), where 0 degrees = aorta directly lateral to the left and 180 degrees = directly lateral to the right.Results. There were 20 patients in Group LTS and 43 patients in Group N. There were no differences in age (13.1 vs. 14.0 years) or gender (52% vs. 62% females) between the LTS and N groups. The aorta was positioned more anterior (larger AVA) to the vertebral body at levels T4 thru T11 (average, 70.1 degrees vs. 40.6 degrees) and L3 (77.1 degrees vs. 70.9 degrees) in Group LTS compared with group N (P < 0.05). With increasing thoracic coronal Cobb angle, the aorta was positioned more laterally to the right (larger AVA) at T8 and T10 (P < 0.05). In the LTS group, curves greater than 40 degrees had a larger AVA (91.4 degrees vs. 57.7 degrees) at apical levels (T7 -T10) than for curves 40 degrees).