髋臼股骨头成形术治疗成人髋臼发育不良的机制分析

目的 本研究通过临床观察来分析髋臼股骨头成形术治疗成人髋臼发育不良的疗效机制.方法 从1997年1月至2003年1月广州中医药大学第一附属医院骨三科采用髋臼股骨头成形术结合通络生骨胶囊治疗的89例(122髋)成人髋臼发育不良患者.对髋关节骨关节炎的X线分期(Tǒnnis法).用髋关节百分法进行临床评估.测量X片上的关节间隙作为评估骨关节炎进展的指标,并比较术前和术后的股骨头覆盖率、Sharp角、CE角、股骨头中心高度和水平距离.结果 经平均3.8年随访,按百分疗效评价标准评定,122髋中优35髋(28.7%),良51髋(41.8%),可27髋(22.1%),差9髋(7.4%).AHI由术前平均63%提高到术后100%,Sharp角由术前平均46.64°改善为术后平均26.73°,CE角由术前平均8.27°提高到术后平均58.82°.股骨头中心与理想旋转中心的水平距离术后明显减少.本组病例全部造盖,无重要血管神经损伤.结论 髋臼股骨头成形术治疗成人Crowe Ⅰ型和Ⅱ型髋臼发育不良伴中晚期骨关节炎的近期临床效果较好,是一种能替代或延迟人工关节置换的有效方法.     

髋臼股骨头成形术治疗成人髋臼发育不良的机制分析

目的本研究通过临床观察来分析髋臼股骨头成形术治疗成人髋臼发育不良的疗效机制。方法从1997年1月至2003年1月广州中医药大学第一附属医院骨三科采用髋臼股骨头成形术结合通络生骨胶囊治疗的89例（122髋）成人髋臼发育不良患者。对髋关节骨关节炎的X线分期（Tonnis法）。用髋关节百分法进行临床评估。测量X片上的关节间隙作为评估骨关节炎进展的指标，并比较术前和术后的股骨头覆盖率、Sharp角、CE角、股骨头中心高度和水平距离。结果经平均3．8年随访，按百分疗效评价标准评定，122髋中优35髋（28．7％），良51髋（41．8％），可27髋（22．1％），差9髋（7．4％）。AHI由术前平均63％提高到术后100％，Sharp角由术前平均46．64°改善为术后平均26．73°，CE角由术前平均8．27°提高到术后平均58．82°。股骨头中心与理想旋转中心的水平距离术后明显减少。本组病例全部造盖，无重要血管神经损伤。结论髋臼股骨头成形术治疗成人CroweⅠ型和Ⅱ型髋臼发育不良伴中晚期骨关节炎的近期临床效果较好，是一种能替代或延迟人工关节置换的有效方法。     

全髋关节置换术在髋部疾患中的应用

目的分析手术治疗髋关节病变病例,探讨人工全髋关节置换在该病种中的术中要点、术后功能恢复及对策。方法回顾分析78例行工全髋关节置换患者(79髋),随机分为对照组和观察组,所用患者均在真臼处重建髋臼,髋臼覆盖不全(70%)进行结构植骨,股骨短缩(4cm),需截骨延长,并比较分析Harris评分,对手术前后髋关节的功能进行评价。结果通过Harsis评分与术前相比观察组(85.94±7.60)分,对照组与术前相比(89.32±7.11),术后髋关节功能明显改善,两组比较,差异无统计学意义。结论全髋关节置换术能够改善髋部疾患患者术后功能,缩短手术时间,减少术后并发症,值得推广。     

幼犬记忆合金髋臼成形术的术后护理

幼犬记忆合金髋臼成形术的术后护理贺苏兰，乔伯英解放军总医院医学实验动物中心（北京海淀区五棵松１００８５３）记忆合金髋臼成形术治疗髋臼发育不良，为小儿患者开辟了一条新的治疗途径。为探讨其疗效，我们利用幼犬进行了实验研究。由于幼犬体质和抗病能力较差，实验...     

髋关节后脱位合并股骨头股骨颈骨折1例

1临床资料患者王某,男,19岁,于1995年1月30日从摩托车上摔下,致右髋部摔伤,伤后20分钟来院。检查见：右下肢呈屈曲,内收,内旋畸形,右臀部膨隆,可角及上移的股骨头,右髋关节弹性固定。X光片可见右髋关节后脱位,股骨头内有一半月形密度增高阴影。入院诊断：髋关节后脱位。给予行手法复位,未成功。遂于1998年2月1日在硬膜外麻醉下行切开复位。手术取后外侧切口,术中见右髋头节后说位合并股骨头骨折,骨折线延伸至股骨颈基底部,骨折块位于股骨头中心凹以下,在股骨头的内下方,与圆韧常相连,并位于髋臼内。术中确定诊断：右髋关…     

造盖术为主的联合术式治疗大龄儿童发育性髋关节脱位

目的:探讨大龄儿童发育性髋关节脱位的特点,分析讨论其发病机制及防治措施.方法:对5～9.5岁发育性髋关节脱位患儿16例(20髋)采取以造盖术为主的联合术式治疗.结果:随访1年,X线检查髋臼指数平均校正10°,股骨头与髋臼同心情况明显改善,无一例再脱位.结论:造盖术为主的联合术式治疗大龄儿童发育性髋关节脱位是一种简单、可行、安全的方法,值得推广.     

带血管蒂肌骨瓣转移与髓芯钻孔减压植骨治疗股骨头缺血坏死的疗效比较

目的:比较髓芯钻孔减压植骨术和股骨颈开窗减压带血管蒂的肌骨瓣转移术治疗早期股骨头缺血性坏死(ANFH)的手术时间和失血量差异,评估手术创伤并通过随访比较两种手术治疗股骨头坏死的中期疗效.方法:通过对34名早期股骨头坏死的患者采用上述两种方法进行治疗的病例进行分析、随访,病例入选的标准:年龄20～55岁的非创伤性ANFH早期患者(ARCO分期均为Ⅱ期).比较两手术相关数据(术中出血量和手术时间),分别评估两手术术前、术后Harris评分,影像学随访观察股骨头无塌陷生存率.结果:通过比较分析髓芯钻孔减压植骨组的术中失血量和手术时间都明显少于带血管蒂的肌骨瓣转移组(P＜0.01).髓芯钻孔减压植骨组术后平均随访3.2(2.1～5.4)年,带血管蒂的肌骨瓣转移组术后平均随访3.0(2.1～5.0)年,两手术组术前Harris评分平均分别为54.9和53.56,统计学分析无明显差异(P=0.436).带血管蒂肌骨瓣转移组术后Harris评分(平均86.8)优于髓芯钻孔减压植骨组(平均76.2)(p=0.000).通过影像学评价,以股骨头坏死进展发生股骨头塌陷为结果的生存分析显示,带血管蒂的肌骨瓣转移组在平均3.0年的随访中观察到2髋塌陷,生存率为92%,髓芯减压组在平均3.2年的随访中观察到8髋塌陷,生存率为60%,带血管蒂的肌骨瓣转移组的远期股骨头无塌陷的生存率优于髓芯钻孔减压植骨组.结论:与开窗减压带血管蒂的肌骨瓣移植术比较,虽然髓芯钻孔减压植骨术治疗早期股骨头坏死(ARCOⅡ期)具有手术创伤小,术后恢复快,短期疗效较好的特点,但其远期髋关节功能以及股骨头无塌陷生存率均不如前者.     

关节镜下带线锚钉修复髋臼盂唇损伤的临床疗效

 为研究关节镜下带线锚钉缝合修复髋臼盂唇损伤的临床疗效，分析了2012年1月至2017年1月因单纯髋臼盂唇损伤接受关节镜下带线锚钉缝合修复治疗患者的临床资料。手术前后分别对患者体征、疼痛程度、髋关节功能及软骨退变程度进行评价。共获得完整临床资料42份，平均年龄29岁，平均随访时间31个月。患者VAS疼痛评分由术前4.5±0.92降至术后1.6±1.2，髋关节Harris评分由术前56.95±10.6提高至术后95.95±5.4，术后39例Harris评分超过90分，优良率92.8％。术后VAS评分及Harris评分和术前对比差异有统计学意义（P<0.001）。患者术后软骨状况和术前对比差异无统计学意义（P=0.083）。证实髋关节镜下带线锚钉髋臼盂唇缝合修复术效果优良，对于髋臼盂唇损伤具有重要治疗价值。     

全髋关节置换术治疗成人先天性髋关节脱位伴骨性关节炎

目的 探讨全髋关节置换术治疗成人先天性髋关节脱位伴骨性关节炎的疗效。方法 2000年6月～2006年3月,对24例（30髋）成人先天性髋关节脱位伴骨性关节炎患者进行了全髋关节置换。其中双侧6例,单侧18例。年龄45～67岁。并对其疗效进行分析,疗效评价根据Harris评分而分为优、良、可、差四级。结果 所有患者手术顺利进行,术后伤口均一期愈合。术后5月,患者均能下地行走,生活自理且恢复日常工作。平均Harris评分由术前的（46．2±8．7）分恢复到术后1年的（90．5±7．4）分,术后与术前Harris评分比较t=17．6714（P〈0．05）,其中评定为优13髋、良14髋、可2髋、差1髋,术后优良率达90．00％。术后髋关节脱位1例。本组病例无肺栓塞、深静脉血栓形成、感染等并发症发生。随访6～49月,X线检查示假体位置良好。结论 全髋关节置换术是治疗成人先天性髋关节脱位伴骨性关节炎的一种有效方法。     

髋臼周围截骨术中球面软骨层的动步态接触数值模拟

数值分析已应用于髋臼周围截骨术的模拟中,以 模拟增生性髋关节接触应力集中的改善。由于很难从CT或MRI图像中分割软骨层,因此假定髋关节模型为简单的完美球窝形关节。本研究的目的是通过数值模拟接触分析来阐明球面软骨层建模方法,模拟髋臼周围截骨术中动步态的软骨层接触压力和接触面积。并通过旋转截骨段模拟髋臼周围截骨术。数值模拟结果表明,在球面软骨层模型中观察到相对连续的接触压力分布和较低的峰值接触压力,球面软骨层建模方法能合理的反映软骨层接触压力。髋臼周围截骨术后能明显的改善软骨层接触压力分布,从而为髋臼周围截骨术提供生物力学参考数据。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

橡胶颗粒沥青混合料低温抗裂性试验研究

以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

Quantitative trait loci （QTLs） for quality traits related to protein and starch in wheat

Quality traits in wheat （Triticum aestirum L.） were studied by quantitative trait locus （QTL） analysis in a recombinant inbred line （RIL） population, a set of 131 lines derived from Chuan 35050 × Shannong 483 cross （ChSh）. Grains from RILs were assayed for 21 quality traits related to protein and starch. A total of 35 putative QTLs for 19 traits with a single QTL explaining 7.99-40.52% of phenotypic variations were detected on 10 chromosomes, 1D, 2A, 2D, 3B, 3D, 5A, 6A, 6B, 6D, and 7B. The additive effects of 30 QTLs were positive, contributed by Chuan 35050, the remaining 5 QTLs were negative with the additive effect contributed by Shannong 483. For protein traits, 15 QTLs were obtained and most of them were located on chromosomes 1 D, 3B and 6D, while 20 QTLs for starch traits were detected and most of them were located on chromosomes 3D, 6B and 7B. Only 7 QTLs for protein and starch traits were co-located in three regions on chromosomes 1D, 2A and 2D. These protein and starch trait QTLs showed a distinct distribution pattern in certain regions and chromosomes. Twenty-two QTLs were clustered in 6 regions of 5 chromosomes. Two QTL clusters for protein traits were located on chromosomes 1D and 3B, respectively, three clusters for starch traits on chromosomes 3D, 6B and 7B, and one cluster including protein and starch traits on chromosome 1D.     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.