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ligaments
相关语句
  韧带
    Microcomputer Controlled Testing System for Determining Dynamic Mechanical Properties of Ligaments
    微机控制的韧带动态力学特性测试系统(英文)
短句来源
    Tensile strength of thoracolumbar spine ligaments
    胸腰椎脊柱韧带拉伸性能的实验研究
短句来源
    Biomechanical and Clinical Study of the Ulnar Collateral Ligaments of Elbow Joint
    肘关节内侧副韧带生物力学及临床研究
短句来源
    The Research Advances of Biomechanics of Human Knee Joint Ligaments
    人体膝关节韧带生物力学研究进展
短句来源
    Methods:Anatomic observation and biomechanical test of thoracolumbar spine ligaments were performed in seven fresh young cadavers.
    方法:采用7例新鲜青年男性尸体胸腰椎脊柱韧带,进行解剖学观察和力学测试,每个韧带的测试除外其它因素单一进行。
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  “ligaments”译为未确定词的双语例句
    Anatomic and Biomechanical Study of Popliteofibular Ligaments
    腘腓韧带的形态学研究及生物力学分析
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    Biomechanical properties of partial carpal ligaments
    部分腕关节韧带的生物力学特性(英文)
短句来源
    The Experimental Study of Biomechanics on Movement of Cervical Spine with Muscles and Ligaments
    颈肌参与下颈椎运动的生物力学分析与研究
短句来源
    Methods: Seven embalmed pelves, along with their spines intact from L5 to the sacrum, the proximal 2/3 of both femora, the intact major pelvic ligaments, and the intact hip joints were obtained.
    方法:成年防腐尸体7具(男性6具、女性1具),年龄19~65,平均39岁。 自第5腰椎水平及双大腿中上2/3处将尸体横断,仔细剔除附着于骨盆、股骨的肌肉、脂肪等软组织。
短句来源
    3. Ultrasound images are captured in real time, so they can often show movement, function, and anatomy of muscles, tendons and ligaments .
    3.超声可以时实、动态的观察膝部肌肉、肌腱、韧带的活动情况、功能状态和解剖位置;
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  ligaments
This liquid film is broken into unstable ligaments which contract under the action of surface tension forming the droplets.
      
In case of ankle-sprains laxity of capsule and ligaments can be observed whereas chronic rotation instability is difficult to detect.
      
In the early stage, patients present with joint effusion which causes destruction of the cartilage ("stiff-type") and distends ligaments and capsules ("loose-type").
      
If there is still symptomatic chronic ankle instability, an anatomical reconstruction of the ligaments should be performed.
      
Malleolar fractures predominately result from a dislocation force at the ankle and are usually accompanied by injuries of the collateral ligaments and the tibiofibular syndesmosis.
      
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This paper is concerned with a biomechanics technique for calculating in rive ligament length of human joints as they move through a range of arbitrary orientations. Locations of soft tissue origin and insertion in an "inaccessible" human subject body segment are determined by mathematically transforming their locations from a dissected cadaver specimen to their respective positions in the human subject. The conceptual validity and mathematical accuracy of the method is examined by its application to simple...

This paper is concerned with a biomechanics technique for calculating in rive ligament length of human joints as they move through a range of arbitrary orientations. Locations of soft tissue origin and insertion in an "inaccessible" human subject body segment are determined by mathematically transforming their locations from a dissected cadaver specimen to their respective positions in the human subject. The conceptual validity and mathematical accuracy of the method is examined by its application to simple blocks of known geometry and two dissected tibiae with different sizes. A discussion of possible sources of error and proposal for further studies are presented.

本文采用自制的坐标测定装置,应用连续介质力学运动学理论,探讨一种非损伤地直接在人体上确定软组织的超止点位置,和分析计算关节活动在不同方位时韧带长度及其变化的方法,进而对其精确性作了对比试验,讨论了产生误差的原因和进一步的考虑。

A three-dimensional analysis of facet joints of the lumbar spine is presented. The results obtained indicated that the stress concentrated in the facets while the lumbar spine was upright, flexed or extended and that the stress level in extension was higher than in the other two positions. After degeneration of the intervertebral disc the stress level in the facet was elevated and the yellow ligament and the facet capsule bore more loading. From this study, it was concluded that the facets played an important...

A three-dimensional analysis of facet joints of the lumbar spine is presented. The results obtained indicated that the stress concentrated in the facets while the lumbar spine was upright, flexed or extended and that the stress level in extension was higher than in the other two positions. After degeneration of the intervertebral disc the stress level in the facet was elevated and the yellow ligament and the facet capsule bore more loading. From this study, it was concluded that the facets played an important role in the biomechanics of the lumbar spine, and its overloading might be one of the causes for back pain. Degeneration of the disc would increase thc load on the facets and leaded to stenosis of the nerve canals and entrapment of the nerve roots.

作者对于腰椎小关节进行了三维有限元分析。结果表明,腰椎小关节在直立位、前屈位和后伸位时,均出现明显的应力集中。而腰椎间盘退变时,其应力水平又较正常时升高。作者认为,腰椎小关节过载可能是引起腰背疼痛的原因之一。腰椎间盘退变可使小关节承载加大。引起小关节的一系列病理变化,进而导致神经根管狭窄及神经根卡压。

32 fresh specimens of thoracolumbar spine, (T9-L3) were obtained from slaughtered swines. They were divided into four operation groups and five parameters were determined. The results were. (1) The lateral roentgenograms of flexion-extension showed that the motions of group C and group D were gr adually increased, and the range of motion of group D was as twice as that of group A(P<0.01). (2) Group B showed an increase in the horizontal displacement and rotation of sagittal plane of superior vertebral body(P<0.05),...

32 fresh specimens of thoracolumbar spine, (T9-L3) were obtained from slaughtered swines. They were divided into four operation groups and five parameters were determined. The results were. (1) The lateral roentgenograms of flexion-extension showed that the motions of group C and group D were gr adually increased, and the range of motion of group D was as twice as that of group A(P<0.01). (2) Group B showed an increase in the horizontal displacement and rotation of sagittal plane of superior vertebral body(P<0.05), and decrease in both com pression strength and bending strength (P<0.05) (3) Group D showed not only a significant increase (P<0.01) in the horizontal displacement and rotation of sagittal plane of superior vertebral body, but also a significant decrease (P>0.02)in bending strength. We concluded that the posterior column structures, especially the supraspinal ligaments and interspinal ligaments, would play an important role in maintaining the stability of the spine. An intact structure of both vertebral body and articular processes not only are important in transmiting axial loads, but also important in preventing the horizontal displacement and rotation of sagittal p plane under axial loads.

本文通过生物力学方法评价了各种减压术对胸腰段脊柱稳定性的影响。结果表明:(1)椎板减压术后抗弯强度降低最明显(P<0.01),约为对照组的三分之一。屈伸活动度亦较对照组增加了一倍(P<0.05)。(2)侧前方减压术使屈曲状态下水平位移及旋转角均增加(P<0.05)抗压及抗弯强度亦降低。(3)侧方减压术使矢状面水平位移及旋转角明显增加(P<0.01),并使抗压强度降低最明显(P<0.01)。从结果分析可以认为后柱结构、特别是棘上韧带和棘间韧带对维持脊柱稳定,防止胸腰椎过度屈曲起重要作用。椎体结构及两侧小关节突的完整对轴向载荷的传导起主要作用,并有防止在轴向载荷作用发生矢状面水平及旋转位移作用。

 
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