屈曲

AIM To investigate the surgical treatments on ankylosed hip joints with flexion informity, 11 cases of total hip arthroplasty course and postoperative treatment were analysed retrospectively.

目的 通过回顾性分析髋关节屈曲强直后的治疗经过，对髋关节屈曲强直后的人工全髋关节置换术的外科治疗方法进行探讨。

Even though the range of motion was larger for the normal group than for the ACDF group, the intersegmental rotations at the adjacent C6-C7 and C4-C5 levels in the ACDF group were 13.4 and 8.8 compared with 3.7 and 4.8 in the normal group, respectively, during the neck motion from 20 flexion to 15 extension.

结果：纵使正常组的活动范围比颈椎前路减压和融合活动范围要大，后者的颈椎6-7和颈椎4-5椎间的旋转在颈部20度屈曲时为13.4度和在颈部15度伸直时8.8度，相比正常组的颈椎6-7和颈椎4-5椎间的旋转在颈部20度屈曲时为3.7度和在颈部15度伸直时4.8度。

Through the comparison of the two consequence, a suggestion is given for the buckling coefficients of lipped channel beams.

结合两种结果对直角卷边槽钢的翼缘屈曲系数提出建议取值。选取三种典型截面，分别用ANSYS计算卷边角度为90°、60°、45°的斜卷边Z型截面檩条屈曲系数。

Clinical Relevance: The risk of injury to both the superior gluteal nerve and the gluteus medius muscle is higher with limited degrees of hip flexion and adduction, such as are possible in the supine position on a fracture table, than it is with greater degrees of hip flexion and adduction, which are possible in the lateral position on a fracture table or in the so-called sloppy lateral position on an ordinary table.

临床相关性：臀上神经和臀中肌在髋关节屈曲内收较小度数时两者都损伤的风险较高，例如仰卧于骨折手术床的可能性比侧卧于骨折手术床或者所谓的随意侧卧位卧于普通的手术床上，髋关节屈曲内收较大度数时的可能性要大。

Clinical Releance: The risk of injury to both the superior gluteal nere and the gluteus medius muscle is higher with limited degrees of hip flexion and adduction, such as are possible in the supine position on a fracture table, than it is with greater degrees of hip flexion and adduction, which are possible in the lateral position on a fracture table or in the so-called sloppy lateral position on an ordinary table.

临床相关性：臀上神经和臀中肌在髋关节屈曲内收较小度数时两者都损伤的风险较高，例如仰卧于骨折手术床的可能性比侧卧于骨折手术床或者所谓的随意侧卧位卧于普通的手术床上，髋关节屈曲内收较大度数时的可能性要大。

Secondly, on the basis of elastic-plastic stability analysis, referring to the stability design method of monosymmetric section axially loaded compression members, equivalent slenderness of pin-ended circular steel arch subject to hydrostatic pressure are deduced from the expression of out-of-plane elastic buckling load.

在弹塑性平面外稳定性分析的基础上，借鉴单轴对称截面轴心受压构件的弯扭屈曲设计方法，提出以面外屈曲荷载对应的正则化长细比为参数进行面外稳定性设计的方法。

No significant difference were found between left and right hand weight loading for erector spinae during the trunk movements, but the values of AEMG with back weight loading were significantly higher than left and right hand weight loading;(2)The AEMG of lumbar multifidus had no significantly different under three load ways during the walking.

(1) 躯干屈曲伸展过程中，腰部多裂肌与竖脊肌各自两侧的激活程度呈现对称性特点；躯干伸展运动对腰部竖脊肌和多裂肌的激活程度大于屈曲运动；(2)腰部多裂肌在躯干旋转时激活特征存在显著的对侧增强效应；(3)腰部前屈过程中，竖脊肌和多裂肌肌肉的高激活区域可能集中在45°—65°的角度范围之内。

This method can improve and treat flexible myospasm of upper limbs, straight myospasm of lower limbs, flexion and contracture of fingers, foot drop and strephenopodia.

从而对中风患者上肢屈曲性痉挛，下肢伸直性痉挛；手指的屈曲性挛缩以及足下垂内翻等症状，达到改善和治疗的目的。

In the buckling question under nonconservation force,a simply example( the dynamic stability question under the uniformly follower forces with small deformation % linear elastic, straight normal.) is considered.The variational equation of braid composite cylindrical shells subjectd to uniformly follower forces is deduced based on the variation principle of quasinatural frequency of elastic nonconservative system self-excited vibration.The calculated formulas of the flutter load and quasinatural frequency of shells are obtained. The program for calculating the flutter load is developed.The numerical example is given and some useful conclusions are obtained.

对非保守力作用下的屈曲问题，具体研究了圆柱壳在比较简单的情况，即小变形、线弹性、直法线假设下在随动力作用下的壳屈曲问题，由拟固有频率变分原理推出了圆柱壳受随从力作用的变分方程，得到了颤振载荷与壳弯曲的固有频率的计算公式，编制了相应的计算机程序，并给出了具体算例，得到了一些有益的结论。

Our findings indicate that tibiofemoral AP translation during knee flexion can be assessed on an active flexion lateral knee radiograph and provide additional information that is not available from a routine lateral radiograph.

我们的研究结果表明膝关节屈曲时胫骨和股骨之间在前后位上的移位能够在主动膝关节屈曲侧位 X 线片上进行评估，并且和既往常规侧位片相比，我们又提供了新的信息，这些信息是既往常规 X 线片所不能反映出来的。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。