Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 20 for “"Joint mechanics"”.
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The use of instrumented measures to describe lower extremity joint mechanics
… offer diagnostic information about the studied joint. These assessments, however, are based on the judgment and experience of the therapist conducting the test and have a high degree of inter and intra rater variability, decreasing the strength of the observation. A set of instrumented measures …
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A finite element evaluation of the talocrural join and the effects of ligament injury on joint mechanics
… the effects that ligament injuries of the ankle joint complex have on the stability of the ankle joint and susceptibility to chronic degeneration of articular surfaces, but the re have been very few studies that use computer simulation and the finite element method to evaluate how a n ankle …
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Human hip joint mechanics : an investigation into the effects of femoral head endoprosthetic replacements using in vivo and in vitro pressure data
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1993.
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The Roles of the Normal Mechanical Properties of Articular Cartilage in the Contact Mechanics of the Human Knee Joint: a Finite Element Approach
… fluid pressure in an anatomically accurate knee joint model. Including the fluid phase as a cartilage constituent, this thesis investigated the mechanics of human knee joint. The main hypothesis of this thesis was that the depth-wise integrity of the structure of cartilage has an important role …
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Geometry Reconstruction and Finite Element Modelling of Porcine Knee Joint
… to be associated with the abnormal contact mechanics of articular cartilage. Contact analyses are widely used to determine the mechanical interplays among the different tissues in the joint. Animal joints are often used to validate a computational model and understand human joint mechanics. …
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Kinetic and 3D Kinematic analysis of netball movements: with and without prophylactic knee bracing
… the underlying mechanisms on the patellofemoral joint remain unclear. An increase in understanding of joint mechanics during sporting and functional tasks could help our understanding of injury mechanisms and preventative interventions. The aim is to identify any changes in the kinetics and …
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The Bio-Mechanical Development and Kinematic Evaluation of Zone I and Zone II Injuries and their Corresponding Surgical Repair Techniques using an In-Vitro Active Finger Motion Simulator: A Cadaveric Study
Research development involving large scale joint mechanics and biomechanical adaptations is growing. However, interest in smaller scale joints, such as the fingers, is limited. Thus, the present work describes the enhancement and clinical application of a previously designed in-vitro active finger …
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Finite Element Modeling of Patient-Specific Total Shoulder Arthroplasty
… is a surgical procedure designed to improve joint functionality by replacing the articulation between the humeral head and the glenoid fossa. Anatomic Total Shoulder Arthroplasty (aTSA) and Reverse Total Shoulder Arthroplasty (rTSA) are two types of replacement surgery to relieve pain and …
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Variable damping controller for a prosthetic knee during swing extension
… extension is able to more accurately emulate the joint mechanics of the unaffected knee. This work is intended to improve prosthetic knee behavior in order to reduce metabolic consumption and improve gait symmetry in transfemoral amputees during level ground walking.
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The Effects Of Vertebral Morphology And Composition On Stem-Tetrapod Intervertebral Joint Functional Behavior
… cutting edge methods in paleobiology and biomechanics to answer these critical questions in tetrapod evolution by: (1) investigating links between vertebral diversity and habitat use in early amphibians that straddle the land-water divide (Temnospondyli); (2) developing and validating through …
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Development and Validation of a Computational Musculoskeletal Model of the Elbow Joint
… and effective tool which may be used to study joint mechanics, examine muscle and ligament function, and simulate surgical reconstructive procedures. While injury to the elbow joint can be significantly debilitating, questions still remain regarding its normal, pathologic, and repaired …
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Multiscale Musculoskeletal Modeling of the Lower Limb to Perform Personalized Simulations of Movement
… passive cadaveric motion implemented in the knee joint of a musculoskeletal model with <em>in vivo</em> kinematics measured from stereo-radiography images; (3) subject-specific joint mechanics for 6 total knee arthroplasty patients performing daily activities was estimated with a sequential …
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Lower Extremity Muscle Activation Following a Previous Knee Injury: Implications for Post-Traumatic Knee Osteoarthritis
… in abnormal movement and loading of the knee joint and thus be linked to mechanical risk factors for PTOA development. This dissertation could not provide evidence, however, that altered thigh muscle activation was associated with more self-reported knee pain or symptoms indicative of PTOA …
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Computational Modeling to Predict Mechanical Function of Joints: Validations and Applications of Lower Leg Simulations
Computational models of musculoskeletal joints and limbs can provide useful information about joint mechanics. Validated models can be used as a predictive device for understanding joint function and serve as a clinical tool for predicting the outcome of surgical procedures. A new computational …
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Specimen-Specific Natural, Pathological, and Implanted Knee Mechanics Using Finite Element Modeling
… patient outcomes, and evaluation of knee mechanics is essential for better diagnosis and repair of knee pathologies. Common knee pathologies include osteoarthritis (degradation of the articulating surfaces), patellofemoral pain, and cruciate ligament injury and/or rupture. The complex …
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Cementless Tibial Base Micromotion During Activities of Daily Living
… in all 6 degrees-of-freedom found in the knee joint, as well as understanding the impact of femoral flexion on conformity of tibiofemoral articulation. Understanding how different activities of daily living generate tibial micromotion yields insight into surgical technique considerations, and …
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Parametric investigation of the mechanical response of two-dimensional composite scarf joints via finite element modeling
… response of two-dimensional composite scarf joints subjected to extensional loading, to determine the associated response sensitivities to joint parameters, and to establish the fundamental operative joint mechanics. The geometric parameters of equal scarf angles, adhesive thickness, and …
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The Neuromuscular and Mechanical Control of the Knee Joint in Patellofemoral Pain Sufferers
… analysis of the motor unit firing rate and knee joint moment, showed the VM motor units in the non-symptomatic subjects were recruitment at a higher firing rate in the tape condition but interestingly no change in the VL and no change in the symptomatic subjects. Both non- symptomatic and …
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A Clearer Picture of Musculoskeletal Disorders of the Knee and Thumb Through the Lens of Image-Based Finite Element Analysis
… subchondral bone cysts (SBCs). The equine stifle joint provides a natural animal model for studying SBCs. Finite element models were used to examine three cyst sizes of approximately 0.03 cm3 (C1), 0.5 cm3 (C2), and 1 cm3 (C3) in the equine stifle joint. Fluid pressure was simulated by using a …
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Statistical Modeling to Investigate Anatomy and Function of the Knee
<p>The natural knee is a hinge joint with significant functional requirements during activities of daily living; as a result, acute and chronic injuries can occur. Pathologies are influenced by joint anatomy and may include patellar maltracking, cartilage degeneration (e.g. osteoarthritis), or …