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Showing 1 to 20 of 129 for “"Ligaments"”.
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Mechanical Investigation of Damage in Ligaments
… sprains are the result of over-stretching of ligaments. Second-degree sprains involve partial tears of the ligaments. In third-degree sprains, the ligaments are completely torn. Although first- and second-degree sprains are not as severe as third-degree sprains, they occur more frequently. The …
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Viscoelastic Models for Ligaments and Tendons
Collagenous tissues such as ligaments and tendons are viscoelastic materials. They exhibit a slow continuous increase in strain over time, or creep, when subjected to a constant stress and a slow continuous decrease in stress over time, or stress relaxation, when subjected to a constant strain. …
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Ex Vivo Deformations of the Uterosacral Ligaments
The uterosacral ligaments (USLs) are important anatomical structures that support the uterus and apical vagina within the pelvis. As these structures are over-stretched, become weak, and exhibit laxity, pelvic floor disorders such as pelvic organ prolapse occur. Although several surgical procedures …
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Biaxial Mechanical Evaluation of Uterosacral and Cardinal Ligaments
… to the vagina/cervix/uterus complex. These ligaments have been studied mainly due for their role in the surgical repair for pelvic organ prolapse (POP). POP, which is the descent of a pelvic organ from its normal place towards the vaginal walls and into the vaginal cavity, affects an …
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Mechanical Characterization of Swine Uterosacral and Cardinal Ligaments
… for studying the mechanical properties of these ligaments. To capture both the active and passive mechanical responses of biological tissues containing SMCs such as the USL and CL, a new structural constitutive model is proposed in chapter 2. The deformation of the active component in such …
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Morphology of the Ankle Collateral Ligaments: Functional and Clinical Considerations
… the anatomy and function of the ankle collateral ligaments, in order to provide a good knowledge base that could be used in clinical and biomechanical applications. Sixty eight cadaveric feet were dissected (age range: 62 – 98 years) and the morphology and ligament behaviour investigated. Data …
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Nonlinear Viscoelastic Behavior of Ligaments and Tendons: Models and Experiments
Ligaments and tendons are rope-like structures in our body that possess time- and history-dependent material properties. Despite the many advances made in experimental and theoretical biomechanics, the material properties of these biological structures are still not fully characterized. This …
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Biaxial Mechanical Behavior of Swine Pelvic Floor Ligaments: Experiments and Modeling
Although mechanical alterations to pelvic floor ligaments, such as the cardinal and uterosacral ligaments, are one contributing factor to the development and progression of pelvic floor disorders, very little research has examined their mechanical properties. In this study, the first biaxial …
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The Contribution of the Ligaments in Flatfoot Deformity, A Finite Element Study
… degeneration of the arch and hindfoot supporting ligaments also plays a significant role. Despite the importance of ligaments in PCFD, the kinematic and kinetic effects of ligament degeneration and tears on each component of the deformity has not been well characterized. Moreover, the impact of …
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The Morphology of Ligaments of The Rabbit With Emphasis on Elastic Tissuecomponents
Made available in DSpace on 2014-12-05T22:14:35Z (GMT). No. of bitstreams: 1 0023302.pdf: 4133961 bytes, checksum: b8f863d672fb35de21e078c2d36ef12a (MD5) Previous issue date: 1957
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A Comparison of Methods for Measuring Damage in Sucrose-Treated Medial Collateral Ligaments
… It consists of a system of muscle, bone, and ligaments that endures repetitive loading during daily and athletic activities. When this loading is excessive, damage to the knee occurs leading to a decreased quality of life.The medial collateral ligament (MCL) is one of the 4 major ligaments …
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Reflexes elicited by per-cutaneous stimulation of the medial and lateral ligaments of the knee
… number of injuries. Our knowledge of the role of ligaments in the control of movements and how they should be managed after injuries needs to expand as fast as participation rates. The aims of the current study were firstly, to investigate if reflexes can be elicited by electrical stimulation of …
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Characterization of Apoptotic Cells in Equine Proximal Suspensory Desmitis
… 6 horses without suspensory ligament injury (16 ligaments) and 4 horses with degeneration of the suspensory ligament (11 ligaments). Specimens were collected immediately after euthanasia and placed in neutral-buffered 10% formalin. The tissue was fixed, sectioned, and stained with hematoxylin and …
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A Study Exploring the Use of Artificial Ligaments to Enhance the Human-Robot Interface Via Force Distribution Manipulation in Biomimetic Cuff Systems
… experienced at a particular region. Artificial ligaments analogous to biological knee ligaments have been created as well. The purpose of the cuff system for wearable ankle assistive devices is to manipulate the force distribution along the human-robot interface by reducing the amount of high …
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Prospective Clinical Study of Posterior Cruciate and Meniscofemoral Ligaments of the Knee Joint From Surgical Biopsies and Morphometric Analysis From Thiel Embalmed Knees
… identified the macroscopic morphology of the ligaments and bony structures, and microscopic collagen fibres and neural structures, there was no significant difference between sides for both the macroscopic and microscopic analyses, however a sex difference was observed for some macroscopic …
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A new mechanical characterization method for thin film microactuators and its application to NiTiCu shape memory alloy
… comparison. Four mm long, 2 [mu]m thick NiTiCu ligaments suspended across open windows were bulk micromachined for use in the out-of-plane stress and strain measurements. The fabrication process used to micro-machine the ligaments is presented step-by-step, alongside methods of fabrication that …
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Comparison of radiographic guidance to magnetic resonance imaging guidance for injection of the collateral ligaments of the distal interphalangeal joint in an equine cadaver model
… to horses with desmopathy of these collateral ligaments.
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Investigating the origin of localized plastic deformation in nanoporous gold by in situ electron microscopy and automatic structure quantification
… consisting of a 3D network of nanoscale gold ligaments, was quantified with an automatic software developed for this work called AQUAMI, which uses computer vision techniques to make statistically reliable numbers of repeatable and unbiased measurements per image. AQUAMI increased the …
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Modeling the soft tissues of the knee joint
… strains placed on knee structures, such as the ligaments and cartilage, during ambulatory activities. With better understanding of ligament strains and cartilage pressures during different loading situations, we are able to more accurately determine the cause of knee injury. In addition, …
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