置换

Other methods should be combined to arthroscopy to treat osteonecrosis of the femoral head. As an operation of microtrauma, arthroscopy has an advantage of micro destruction to the arthral blood and stability, and has a positive effect on relieving pain, improving joint motion, delaying arthroplasty.

髋关节镜作为微创手术，具有对关节血运和稳定性破坏小的优势，对于减轻疼痛、改善关节活动功能、延缓关节置换的时间起到了积极的作用。

Results Mitral valve dilatation resulted in a decrease in left atrail diameter from (44±6)mm, a decline in transmitral valve pressure gradient from (18.2±6.8)mm?Hg to (7.2±3.8)mm?Hg, and an increase in mitral valve area from (1.04±0.21)cm2 to (1.98±0.55)cm2. 8 cases of severe restenesis developed.

结果 二尖瓣平均跨瓣压差由(18.2±6.8)mm Hg降至(7.2±3.8)mm Hg，瓣口面积由(1.04±0.21)cm2增至(1.98±0.55)cm2，左房内径由(44±8)mm降至(38±6)mm；8例出现明显再狭窄，其中5例再次PBMV术，3例行瓣膜置换术。

Solvent extraction of gold from alkaline aurocyanide solutions has more potential advantages over present zinc-dust cementation and carbon-adsorption procedures.

溶剂萃取法从碱性氰化液中提取金的工艺相对于传统锌置换法和活性炭吸附法具有潜在的优势，因而备受青睐。

The reconstruction methods for acetabular rotation center included standard THA, structural autografting and medialization of acetabular rotation centers.

髋臼旋转中心的重建方法包括标准的全髋关节置换术、结构性自体植骨和髋臼旋转中心内移。

Objective To discuss the use of autologous blood transfusion in total knee replacement.

目的 探讨预存式自体输血在全膝关节置换术中的临床应用。

Dr San Baw used over 300 ivory hip replacements from the 1960s to 1980s.

圣博士的BAW使用超过300个象牙髋关节置换从1960年代到20世纪80年代。

RCM reactions of 49 and 50 are chosen to evaluate the catalytic performance ofthe complexes 46-48 because they are informative and simple to manipulate. The resultsindicated that ruthenium benzylidene complexes 46 and 48 possess significant thermalstability and cyano group tolerance.

由于烯烃49、50的闭环交互置换反应简单、清晰，故用来考察新钌卡宾配合物的催化性能，结果表明配合物46、48具有良好的热稳定性及耐氰基性能。

AIM: To evaluate the anterior chamber configuration of the high myopia after clear lens exchange surgery using ultrasound biomicroscopy.

目的：通过超声生物显微镜观察高度近视眼透明晶状体置换手术后眼前节结构的变化。

METHODS: Medline (1966 to August 2005), MD Consult (1966 toAugust 2005), BIOSIS (1969 to August 2005), and EMBASE (1969to August 2005) databases were searched. Randomized and quasirandomizedstudies comparing GA and neuraxial blockfor elective THR were included in this analysis.

搜索 Medline （1996年－2005年8月）、 MD Consult （1966年－2005年9月）、 BIOSIS （1969年－2005年9月）和 EMBASE （1969年－2005年9月）的资料，分析其中包括随机或几乎随机的神经轴阻滞和全麻下行选择性全髋置换比较的数据。

In vivo three-dimensional knee kinematics using a biplanar image-matching technique.

旋转铰链型人工膝关节置换在胫骨近端侵袭性骨肿瘤治疗中的应用。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。