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排序方式: 共有48条查询结果,搜索用时 46 毫秒
1.
目的:为掌握壮族骨盆的结构特点并向临床应用提供骨盆的形态学资料,作者对来源于壮族居民世代聚居地区,生前资料比较完整可靠的壮族成人骨盆标本100例,进行体质人类学调查。方法:采用国际标准进行了28项线性测量。结果:得到了壮族成年男女骨盆各50例较系统的形态学资料及12项指数。对壮族骨盆与其他不同种族、民族的骨盆作了比较,并对壮族骨盆的特点及有关临床问题进行了讨论。 相似文献
2.
目的 探讨不同类型腰椎退行性侧凸患者脊柱矢状位参数与骨盆参数的相关性.方法 70名脊柱形态正常的志愿者与110例腰椎退行性侧凸患者,摄站立位脊柱全长正侧位X线片,测量胸椎后凸角、胸腰段后凸角、腰椎前凸角、矢状位垂直轴、骨盆投射角、骶骨倾斜角和骨盆倾斜角.根据SRS测量标准,将腰椎退行性侧凸患者按脊柱矢状位形态分为三型:Ⅰ型45例、Ⅱ型48例、Ⅲ型17例.比较志愿者与各型退变侧凸组间的脊柱矢状位参数及骨盆参数,分析脊柱矢状位参数与骨盆参数的相关性.结果 骨盆投射角,Ⅲ型退行性侧凸组低于其他三组,差异有统计学意义;骨盆倾斜角,Ⅱ型、Ⅲ型退行性侧凸组高于志愿者组及Ⅰ型退行性侧凸组,差异有统计学意义,其中Ⅱ型与Ⅲ型的差异也有统计学意义;骶骨倾斜角,Ⅱ型、Ⅲ型退行性侧凸组小于志愿者组及Ⅰ型退行性侧凸组,差异有统计学意义.在志愿者组、Ⅰ型退行性侧凸组中未发现脊柱矢状位失平衡;Ⅱ型与Ⅲ型退行性侧凸组脊柱矢状位失平衡的发生率分别为17.8%、29.4%.志愿者组与Ⅰ型退行性侧凸组的脊柱矢状位参数间、骨盆参数间及矢状位脊柱-骨盆参数间存在相关性;Ⅱ、Ⅲ型退行性侧凸组的脊柱矢状位参数间的相关性逐渐减小,矢状位脊柱-骨盆参数间的相关性也减小甚至消失,而骨盆参数间的相关性存在;各型退行性侧凸组的腰椎前凸角、骨盆倾斜角均与矢状位垂直轴相关,其中后两者的相关性更大.结论 脊柱矢状位形态呈阶梯样改变,Ⅱ、Ⅲ型退行性侧凸患者的骨盆参数、脊柱矢状位参数与骨盆参数的相关性发生变化,更容易出现脊柱矢状位失平衡. 相似文献
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目的分析比较≥65岁老年退变性腰椎滑脱症(degenerative lumbar spondylolisthesis,DLS)患者与同年龄段无滑脱人群的脊柱骨盆矢状面参数。方法选择2004年1月~2014年1月间于本院就诊,影像学资料完整,无峡部裂、椎体肿瘤,椎体结核、椎体压缩性骨折等疾病,且无腰椎手术史的≥65岁的DLS患者50例为滑脱组。以相同纳入标准选择50例年龄性别匹配的无腰椎滑脱的老年人为对照组。测量滑脱组患者腰椎滑脱椎间盘角和滑脱率均值,再测量并比较2组患者的腰椎前凸角(lumbar lordosis,LL)、骨盆入射角(pelvic incidence,PI)、骨盆倾斜角(pelvic tilt,PT)和骶骨倾斜角(sacral slope,SS)。滑脱组内再按性别分组比较各参数,并分别计算2组患者各参数间的相关性。结果滑脱组患者滑脱椎间盘角为7.4°±5.2°,滑脱率为(22.5±9.5)%。滑脱组患者的LL、PI、PT、SS均明显高于对照组。滑脱组内分性别比较时,滑脱参数和腰椎矢状面参数差异均无统计学意义。结论老年DLS患者较同龄无腰椎滑脱人群有着更大的LL、PI、PT、SS。性别因素可能对老年DLS患者的滑脱参数和主要脊柱骨盆矢状面参数无显著影响。 相似文献
5.
Michel SC Rake A Götzmann L Seifert B Ferrazzini M Chaoui R Treiber K Keller TM Marincek B Kubik-Huch RA 《European radiology》2002,12(12):2898-2905
Our objective was to compare maternal pelvimetry and patient acceptability between open low-field (0.5-T) and closed 1.5-T
MR systems. Thirty women referred for pelvimetry (pregnant: n=15) were scanned twice in the supine position, once in the vertical open system and once in the closed system. Each patient
completed a comfort and acceptability questionnaire. Pelvimetric and questionnaire data were compared between systems. Total
scan time was double in the open system (7:52±1:47 vs 3:12±1:20 min). Poor image quality in the open system prevented assessment
of interspinous and intertuberous diameters in one woman and all measurements in another, both pregnant, with abdominal circumferences
>120 cm. The open system was much more acceptable in terms of claustrophobia and confinement (both p<0.01). Claustrophobia interrupted one closed examination. Thirty-three percent of pregnant women in both systems reported
fear of fetal harm. Sixty percent of all women preferred the open system, 7% the closed system, and 33% had no preference.
Limits of agreement of 3–5% from the mean for all diameters confirmed good pelvimetric reproducibility. Women's preference
for open-system MR pelvimetry is feasible with abdominal circumferences ≤120 cm.
Electronic Publication 相似文献
6.
Stephen J. Preece Peter Willan Chris J. Nester Philip Graham-Smith Lee Herrington Peter Bowker 《Journal of Manual and Manipulative Therapy》2008,16(2):113-117
Pelvic tilt is often quantified using the angle between the horizontal and a line connecting the anterior superior iliac spine (ASIS) and the posterior superior iliac spine (PSIS). Although this angle is determined by the balance of muscular and ligamentous forces acting between the pelvis and adjacent segments, it could also be influenced by variations in pelvic morphology. The primary objective of this anatomical study was to establish how such variation may affect the ASIS-PSIS measure of pelvic tilt. In addition, we also investigated how variability in pelvic landmarks may influence measures of innominate rotational asymmetry and measures of pelvic height. Thirty cadaver pelves were used for the study. Each specimen was positioned in a fixed anatomical reference position and the angle between the ASIS and PSIS measured bilaterally. In addition, side-to-side differences in the height of the innominate bone were recorded. The study found a range of values for the ASIS-PSIS of 0–23 degrees, with a mean of 13 and standard deviation of 5 degrees. Asymmetry of pelvic landmarks resulted in side-to-side differences of up to 11 degrees in ASIS-PSIS tilt and 16 millimeters in innominate height. These results suggest that variations in pelvic morphology may significantly influence measures of pelvic tilt and innominate rotational asymmetry. 相似文献
7.
Miriam S. Lenhard Thorsten R.C. Johnson Sabine Weckbach Klaus Friese 《European journal of radiology》2010,74(3):e107
The objective of this study was to assess the clinical value of pelvimetry to predict dystocia due to cephalopelvic disproportion.63 patients who had received an abdominal CT scan postpartum were included. Pelvimetry was performed retrospectively with these datasets on a 3D workstation; there were no CT examinations performed solely for pelvimetry, and there was no radiation exposure for study purposes. Patients were divided into three groups by the course of birth, i.e. normal vaginal delivery (A), dystocia due to cephalopelvic disproportion (B) and other patients (C). Previously described methods were evaluated for their accuracy in diagnosing cephalopelvic disproportion.The pelvimetric parameters did not show significant differences between groups A (n = 20) and B (n = 20) except for the sagittal mid-pelvic diameter (q) with 12.7 ± 0.6 cm vs. 11.9 ± 0.6 cm (p = 0.0001). The ROC analysis of the previously described methods showed areas under the curve between 0.50 and 0.67. The ROC curves for q had an area of 0.88, providing 85% sensitivity with 85% specificity.In conclusion, the sagittal mid-pelvic diameter shows potential to detect cephalopelvic disproportion with acceptable accuracy. With the information gained on the CT data, a prospective trial based on MR imaging can be set up to validate the diagnostic accuracy. 相似文献
8.
应用阴道超声测量骨盆及胎头径线指数预测相对头盆不称的研究 总被引:3,自引:0,他引:3
目的探讨应用阴道超声测量胎儿头盆指数,诊断相对头盆不称的方法。方法对190例初产妇分为阴道分娩组(117例)和手术分娩组(73例)。在孕28~35周时应用阴道超声行骨盆测量,在分娩前1周行超声测量胎儿双顶径和头围,计算出径线,周长和面积的头盆指数,并与分娩结果比较。结果各种头盆指数在手术分娩组和阴道分娩组间均有显著性差异。其中定义为骨盆中腔前后径与横径的均值与胎儿双顶径之差的径线头盆指数(CID)准确率最高(77.9%)。CID≤15.8mm时,83.0%的孕妇需手术分娩,CID>15.8mm时,72.6%的孕妇可顺利经阴道分娩。结论应用阴道超声行骨盆测量和CID预测相对头盆不称,是一种简单实用的方法,可协助产科临床恰当地选择分娩方式。 相似文献
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10.
INTRODUCTION: It has generally been considered that open pelvic surgery is almost always easier in female subjects because of anatomical differences facilitating surgical access. In contrast, the male pelvis has been considered to be narrower and deeper. The objective of this study was to assess magnetic resonance imaging (MRI) pelvimetry in patients with rectal cancer in whom any difference in pelvimetry may potentially affect operative management. Male and female pelvic bony dimensions were compared. METHOD: A cohort of 186 patients (112 males and 74 females) with rectal cancer who had been recruited prospectively to the Magnetic Resonance Imaging and Rectal Cancer European Equivalence Study (MERCURY Study) were assessed. Complete digital images were available on these patients. A comparison of the pelvic dimensions was made between the sexes using 16 dimensions measured on the MRI workstation using the mid-sagittal and axial images. RESULTS: There was no significant difference and considerable overlap between the sexes with respect to each of the 14 parameters measured from the preoperative sagittal MRI scan. However, there was a highly significant difference between the interspinous and intertuberous transverse diameter of the pelvis (P < 0.0001). CONCLUSION: Outcome after surgery may be influenced by the technical difficulty of the operation and this had been thought to be partly affected by the pelvic size. In this cohort of 186 patients, the only difference seen between the sexes, was in the transverse mid-inlet and pelvic outlet diameter. 相似文献