骨折学

The indirect signs were hematocele sphenoid, ethmoid hematoma, optic nerve thickening, teardrop sign. In the 19 cases(22eyes) of optic canal fracture, single-walled fractures 17 eyes(77.3%), multi-walled fractures 5 eyes(22.7%).

视神经管HRCT检查可清楚的显示视神经管骨折的部位及分型，进行准矢状位重建可提高骨折的检出率，可为临床诊断及选择治疗方案提供可靠的影像学依据。

Before conclusion emphasizes skill, be opposite of fracture of shift hip joint of bones different and video learn to check, basis result undertakes classified, choose the cut with inchoate operation, apt operation, the restoration of high quality and inside fixed, can heighten the curative effect of fracture of shift hip joint of bones.

结论强调术前对移位型髋臼骨折的不同影像学检查，依据结果进行分类，选择早期手术、操作轻易的切口，高质量的复位及内固定，可提高移位型髋臼骨折的疗效。

The objective of this meta-analysis was to determine whether the use of calcium phosphate bone cement improves clinical and radiographic outcomes and reduces fracture complications as compared with conventional treatment (with or without autogenous bone graft) for the treatment of fractures of the appendicular skeleton in adult patients.

Meta分析的目的是明确，与传统疗法治疗成人四肢骨折相比较，磷酸钙骨水泥是否可以改善临床和影像学效果，减少骨折并发症。

Radiographic studies in 6 patients with C-1 fractures demonstrated a unilateral sagittal split of the lateral mass but an intact transverse atlantal ligament.

6例C-1骨折病人的影像学研究证实这类骨折仅为单侧的侧块矢状裂，而未合并寰韧带的横断。

RESULTS: The relative levels of COX2 mRNA as well as the contents of PGE2 and cAMP were elevated after fracture, and were significantly higher in study group than those in control group at 3 and 4 weeks postoperatively. Histological observation revealed that the mineralization of cartilage matrix, the endochondral bone formation and the callus remodelling took place earlier in study group.

结果：环氧化酶2(COX2) mRNA的表达量以及PGE2和cAMP的含量均较骨折前显著上升，且实验组在术后3~4 wk时以上指标明显高于对照组，组织学结果则显示实验组骨折间隙内软骨内成骨和编织骨向板层骨的改建均领先于对照组。

［Objective］To explore the effect of continuous physiological osteogenic stress on the bone healing of canine iliopectineal crest.［Method］Ten adult mixed breed dogs without significant individual difference were made transverse fracture at bilateral iliopectineal crest 1.5 cm above the dome of acetabulum,which were fixed with ATMFS or steel plate respectively. The animals were sacrificed and specimens were procured at 2,4,6,8 and 12 weeks after operation.Samples from the fracture gaps were investigated by histology of HE and Masson staining,image pattern analysis of new bone formation.

探讨持续顺应生理力线的压应力对犬骨盆弓状线部骨折愈合的影响［方法］选用10只成年杂家犬，双侧髋臼臼顶上方1.5 cm处横形截骨，分别采用ATMFS(骨盆髋臼三维记忆内固定系统)柱固定器和5孔重建钢板内固定，于术后2、4、6、8、12周处死动物取材，行HE染色、Masson三色法染色组织学检查，图像分析新骨形成积分光密度值，研究不同应力作用模式下的骨盆骨折愈合情况。

ABSTRACT Purpose By adding additives in carbonated hydroxyapatite cement to increase its rheology to prepare injectable carbonated hydroxyapatite cement.(1) Test the physicochemistry characteristics of ICHA cement.(2) Evaluate the biocompatibility of ICHA cement.(3) Biomechanieal appreciation of ICHA cement used in distal radius fracture.(4) Study the mechanical stability, degradation and bone formation ability of ICHA cement used in goat lateral tibial plateau compression fracture.

目的 在碳酸化羟基磷灰石(Carbonated hydroxyapatite，CHA)水泥原位固化基础上进行改性研究，通过改变其流变学特性，达到具有良好注射性能的可注射性碳酸化羟基磷灰石(Injectable carbonated hydroxyapatite，ICHA)水泥，为骨科的微创治疗提供新方法：(1)制备ICHA水泥，完成理化性质的检测；(2)进行ICHA水泥的生物相容性评价；(3)探讨ICHA水泥在桡骨远端骨折应用的生物力学固定强度；(4)研究ICHA水泥在实验性大动物胫骨平台压缩性骨折中应用的力学稳定性、降解性能及成骨性能。

BACKGROUND: Subchondral fractures were identified as the most complication of the femoral head necrosis and had important influences on the treatment and prognosis.

摘要背景：软骨下骨折是成人股骨头缺血坏死的重要合并症，对患者的治疗和预后有重要影响，然而有关软骨下骨折的病理及影像学表现尚缺乏深入的研究。

OBJECTIVE: From the rheological point of view to quantitatively analyze the two fixators in clinical application of the treatment of spinal fracture-dislocation through simulation of spinal L1-2 fracture-dislocation and axial compression test after plate and intramedullary nail fixation.

目的：通过模拟脊柱L1~2骨折脱位，以钢板和髓内钉固定后对标本进行轴向压缩应力松弛实验，从流变学角度对临床治疗脊柱骨折脱位的2种固定器进行定量分析。

OBJECTIVE: From the rheological point of view to quantitatively analyze the two fixators in clinical application of the treatment of spinal fracture-dislocation through simulation of spinal L1-2 fracture-dislocation and axial compression test after plate and intramedullary nail fixation.

目的：通过模拟脊柱L(下标 1~2)骨折脱位，以钢板和髓内钉固定后对标本进行轴向压缩应力松弛实验，从流变学角度对临床治疗脊柱骨折脱位的2种固定器进行定量分析。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。