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To establish three dimensional finite element model of the whole cervical spine and investigate biomechanical characteristic of the human cervical spine for application of clinical diagnosis and therapy. Method: A healthy adult female was subjected, three dimensional finite element model of the whole cervical spine was established using the method of 3D interpolation with CT. Result: The model included...
In this study, the kinematic and dynamic parameters were obtained by using the photogrammetric techniques and three-dimensional force platform in jumping moment for foot, the force and moment acted on the tibia were calculated with inverse dynamics method, the three-dimensional finite element model of tibia that considers material property and geometric behavior was established by CT datum, and stress...
Laminotomy is a minimally invasive endoscopic approach relating to the lamina in order to decompress the spinal cord due to disc herniation. A three-dimensional finite element model of L2, L3 and L4 was developed to investigate the effects of laminotomy, or partial unilateral laminectomy to the spinal structure. The vertebral model was extracted from computed tomography image datasets while the soft...
One of the basic principles for internal fixation is the achievement of stable construct for proper bone healing. Locking compression plate (LCP) achieved it through locking screws that create a fixed-angle construct providing angular stability. The plate and screws combination to construct a stable fixation depends on factors such as the type of fracture and surgical preference. The optimum combination...
The artificial prosthesises currently used are only different in the femoral head size, neck length and stem thickness, but there is not any individualized prosthesis. At present, prosthesis looseness is the main problem of artificial femoral replacement, and individual matching level of joints is the bottleneck of restricting prosthesis replacement surgery. If we can design and produce corresponding...
The use of ultrasound as an alternative diagnostic ldquoscreeningrdquo tool for osteoporosis has extensively been studied. One ultrasound parameter that has shown promise is the speed-of-sound (SOS) as it has been correlated experimentally to bone strength. Unfortunately, to date, a complete mechanical understanding of these findings is still missing. The aim of this study was therefore to look into...
We aim to develop a finite element model of human spine of surgical training and planning. A precise three-dimensional geometric model of the intervertebral disc has been first created by segmenting and reconstructing the contour of intervertebral disc in spine CT Images; Then three-dimensional finite element model (FEM) of vertebrae has been established based on the geometric model by setting the...
The temporomandibular joints (TMJ), the only bilateral linked joints in human body, are the load-bearing joints. However, the stress distributions in TMJs are still not well known. In this study, a three-dimensional finite element model of the mandible, discs and articular fossa-eminences was developed according to the CT images of a person. The interfaces between the discs and the articular cartilages...
In this work, we introduce an extension of the linear elastic tensor-mass method allowing fast computation of non-linear and visco-elastic mechanical forces and deformations for the simulation of biological tissue. We aim at developing a simulation tool for the planning of bone surgical treatment based on CT data of special patient. Surgery simulation requires accurate modeling of the mechanical behavior...
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