臼

Explore and improve the method of performing biomechanics experiment with digitalization mechanics model. 1、Construct 3D finite element model of normal acetabulum: Scan the pelvic example of human body with CT, restitution three-dimensional visible haunch bone with correlated software; investigate the method of 3D image reconstruction with plane images.

正常髋臼三维有限元模型的构建：通过对大体标本进行薄层CT扫描，利用相关软件重建三维可视髋臼，研究利用平面图像重建高仿真三维影像的方法；再利用有限元分析软件将髋臼力学参数赋值于可视模型上，使其具备力学性能，同时研究如何改进赋值方法，使有限元模型力学性能更接近于大体标本。

Acetabular posterior wall was started from top of acetabulum to the junction of acetabular posterior wall and ischium. This area was equally divided into two parts: part A-superior, part B-inferior.

分组：髋臼后壁范围为从髋臼顶点至髋臼后壁与坐骨枝相交处，将其等分为两部分，上部为A区，下部为B区。

Results: The labrum was the widest at the point of anterosuperior 90°(8.82±2.20) mm and the thickest at the point of midsuperior (5.56±1.56) mm.

结果：髋臼唇在距髋臼顶点前90°最宽(8.82±2.20)mm，在髋臼顶点处最厚(5.56±1.56)mm。

Occurrence of the triangular shape decreased with the age. The frequency of irregular labrum and absence labrum increased with the age. The frequency of labrum high signal intensity increased with the age.

随年龄的增长，三角形髋臼唇出现频率逐渐降低，不规则形及缺如型髋臼唇出现频率逐渐增高，髋臼唇出现异常信号的频率逐渐增高。

PartⅢThe study of macrography, histology, pathology and apoptosis After the impactive injury of acetabular cartilageObjective To discuss the change of short and long peoriod for the impactive injury of acetabular cartilage by using different energy,the pathological mechanism of chondral injury and the relation between chondrocyte apoptosis and cartilage degeneration. Methods fifty-four New Zealand white rabbits were divided into high energy and low energy groups randomly, of which the two groups which were made through the homemade impactive equipment by impacting the right acetabular cartilage of rabbit at 35cm and 15cm with 0.400kg weight vertically and simulating the mechanism of impactive injury of human acetabular cartilage.

方法新西兰大白兔54只，平均年龄6个月，体重2.5±0.5kg，模拟人髋臼软骨冲击伤机制，采用自制冲击装置，用质量为0.400kg的重锤，分别沿导向杆从高35cm和15cm处下滑垂直冲击兔右侧髋臼软骨，建立兔髋臼软骨冲击伤模型，随机分为高能组和低能组，另一组为对照组，每组18只。

Methods Twenty–four New Zealand white rabbits were divided into model group and control group randomly, of which the two groups which were made through the homemade impactive equipment by impacting the right acetabular cartilage of rabbit at 45cm with 0.400kg weight vertically and simulating the mechanism of impactive injury of human acetabular cartilage. Each group was 12.The model group was injected SH.The control group was injected NaCl solution. The observation of macrography, histology (stained by HE, safarnin O and toluidine blue), transmission electron microscope, scanning electron microscope and the method of TUNEL were made for the three groups that were killed postinjuriously at 4 day and 4 week.

方法新西兰大白兔24只，平均年龄6个月，体重2.5±0.5kg，模拟人髋臼软骨冲击伤机制，采用自制冲击装置，用质量为0.400kg的重锤，沿导向杆从高45cm处下滑垂直冲击兔右侧髋臼软骨，建立兔髋臼软骨冲击伤模型，随机分为模型组和对照组，每组12只。

Kaplan-Meier survivorship analysis of socket revision, radiologic loosening of the socket, and the appearance of a radiolucent line greater than 1 mm in the graft-socket interface as the end points indicated survival rates of 99%, 97.1%, and 63.5% at 10 years and 96.6%, 90.2%, and 56.1% at 15 years, respectively.

以髋臼骨缺损的Kaplan-Meier生存曲线分析、髋臼骨的放射学松动和在移植髋臼骨接口的X光透射带明显大于1mm作为治疗终点显示的10年存活率分别为99%、97.1%和63.5%，15年存活率分别为96.6%、90.2%和56.1%。

The self-centering mechanism design of bipolar endoprosthesis has advocated the use of offset centers of rotation between the inner and outer joint bearing surfaces to generate a self-centering moment on loading to prevent impingement of polyethylene rim and stem neck or cup fixed at wrong place. The design was used popularly, but the function of self-centering mechanism was discussed in very few papers. Three bipolar endoprosthesis were evaluated: UNIQHIP system, UHR system, and AML system.

双极式半人工髋关节的离心复位机构，是利用髋臼外帽的球心与股小球的球心两者在不同点，来防止发生髋臼外帽固定於髋臼中某角度卡住不动，而使股骨柄颈部固定磨损超高分子聚乙烯内衬之一边缘，进而加速超高分子聚乙烯内衬之磨耗，造成骨溶蚀与人工髋关节的松脱。

Now most doctors recommend that CAF should get early open reduction and internal fixation.But for the patients who were accompanied with colostomy,cystostomy,bedsore,contunding and infected skin near the approach,how to determine the indications,manage and win the opportunity of operation to improve the quality of life is a significant topic for study and discussion.

目前，多数学者主张复杂性髋臼骨折尽量争取早期手术切开复位内固定，对于合并有结肠、膀胱造瘘、褥疮和入路附近皮肤挫伤感染的复杂性髋臼骨折，如何确定手术指征、争取手术时机、采用合理的术式、改善患者愈后生活质量是复杂性髋臼骨折治疗过程中面临的一个重要课题。

A series of complications may emerge in the course of therapy.Now most doctors recommend that CAF should get early open reduction and internal fixation.But for the patients who were accompanied with colostomy,cystostomy,bedsore,contunding and infected skin near the approach,how to determine the indications,manage and win the opportunity of operation to improve the quality of life is a significant topic for study and discussion.

目前，多数学者主张复杂性髋臼骨折尽量争取早期手术切开复位内固定，对于合并有结肠、膀胱造瘘、褥疮和入路附近皮肤挫伤感染的复杂性髋臼骨折，如何确定手术指征、争取手术时机、采用合理的术式、改善患者愈后生活质量是复杂性髋臼骨折治疗过程中面临的一个重要课题。

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。