中文摘要：

背景骶的神经损害是骨盆或骶的破裂的普通复杂并发症。作为在骶骨以内的骶的神经 courser 并且与包围纸巾有一种复杂关系，骶的丛损害的不同部分有类似的临床的症状和症状。自从在骶的神经损害的诊断的特定的成像技术的缺乏，特别在多片断上，多地点，怎么决定骶的神经损害的外科手术前的地点和程度精确地成为整形外科的将军和图象专业人员的 concem。这研究被进行在高分辨率在一样的片上获得卓见进骶的神经( SN )的全面解剖特征计算断层摄影术( HRCT )重建并且为相关 diseases.Methods 的临床的诊断决定这个信息的价值五十个健康志愿者和 30 个病人( 40 方面)与 SN ，外科证实的损害用16片被扫描螺旋状的 CT 扫描仪(轻速度， GE ，美国)。在病人之中， 6 与 intervertebral 磁盘脱肠(6 个方面) ，第 8wi 针的狭窄(12 个方面) ， 11 与骨盆的损伤(14 个方面) ， 4 与骨盆的恶意(6 个方面) ，并且 1 与骶的脊椎的肺结核(2 个方面) 。SN multiplanar 重建用图象被放在一样的片上的基于 UNIX 的 SCD4.1workstation 被执行。所有图象在数字成像被存储，在药的通讯格式化。在不同的节的神经的显示与每个单个分数的并列曲线用五等级的规模被分析。在片上可见的全面解剖特征被分析，损害的畸形是一样的片的图象清楚地揭示了的 studied.Results 形状，跑的方向，厚度，紧张和 S1-S4 神经的邻近的解剖。在不同的节的显示率的等级是：向外旋转的倾斜的 sagittal 向外旋转的倾斜的花冠倾斜的花冠飞机花冠 sagittal 横向的节。S5 神经部分在以后的骶的孔附近从起点被显示到片断。，三角形的骶的丛的全面解剖仅仅在倾斜的向外旋转的 sagittal 节被揭示它的单个 rami 的 100% ，以及二邻近的 rami 或三，从他们的起点被显示到 piriformis 的前面的边阶。畸形包括了词法变化(97.5%)的

英文摘要：

Background Sacral nerve injury is a common complication of pelvic or sacral fractures. As the sacral nerve courser within the sacrum and has a complex relationship with the surrounding tissues, different parts of the sacral plexus injury have similar clinical symptoms and signs. Since lack of specific imaging technique in the diagnosis of sacral nerve injury,especially on multi-segment, multi-site, how to determine the preoperative location and extent of the sacral nerve injury accurately becomes a concem of the general orthopaedic and images practitioners. This study was conducted to gain an insight into the overall anatomical features of the sacral nerve （SN） on the same slice in high resolution computed tomography （HRCT） reconstruction and to determine the value of this information for the clinical diagnosis of related diseases.Methods Fifty healthy volunteers and 30 patients （40 sides） with SN lesions confirmed by surgery were scanned using a 16-slice helical CT scanner （Light Speed, GE, USA）. Among the patients, 6 with intervertebral disk hernia （6 sides）, 8with spinal stenosis （12 sides）, 11 with pelvic trauma （14 sides）, 4 with pelvic malignancies （6 sides）, and 1 with sacral vertebral tuberculosis （2 sides）. The SN multiplanar reconstruction was performed using a UNIX-based SCD4.1workstation where the image was set on the same slice. All images were stored in the Digital Imaging and Communications in Medicine format. The display of nerves in different sections was analyzed using a five-graded scale with coordinate curves of each individual score. The overall anatomic features visible on the slice were analyzed and the abnormalities of the lesions were studied.Results The image of the same slice clearly revealed the shape, running direction, thickness, tension and adjacent anatomy of the S1-S4 nerves. The rank of display rates in different sections was： outward-rotated oblique sagittal 〉outward-rotated oblique coronal 〉 oblique coronal plane 〉 coronal 〉 sagitta