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Variation of Lumbar Spine Stiffness With Load
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Mechanical studies of the Functional Spinal Unit (FSU) in-vitro have shown that the slopes of the load-displacement curves increase with load. This nonlinearity implies that the stiffness of the ...
Monitoring Fracture Site Properties With External Fixation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An in-vitro system has been devised to monitor the properties of an idealized fracture site immobilized with a Hoffman-Vidal external fixator. A dial gage was used to measure the relative pin ...
Optimization Technique for the Calculation of In Vitro Three-Dimensional Vertebral Motion
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A method for the calculation of translations and Eulerian rotations of an orthogonal axis system with respect to a fixed reference is described with application to the measurement of position ...
Three-Dimensional Finite Element Analysis of a Simplified Compression Plate Fixation System
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A three-dimensional, linear finite element model was generated for an intact plexiglass tube with an attached six-hole stainless steel compression plate. We examined external forces representing ...