Spontaneous forward luxation at the atlanto-axial level is a well-known and common complication of rheumatoid arthritis. The distance between the articular surface of the odontoid process of the axis and the corresponding articular surface of the atlas should not normally exceed 3 mm. in adults; a larger distance indicates luxation. Conlon, Isdale. and Rose (1966) found luxation between atlas a...

Due to the low specific strength of bamboo oriented strand boards compared with commonly used wooden building materials, reasonable and novel cross-section designs columns fabricated from as structural members were investigated. An axial compression experiment was carried out on full-scale characterize ultimate behaviors under a concentric load. The bearing capacities solid, hollow five-core sa...

Detailed investigation on biomechanics of a complex structure such as the human lumbar spine requires the use of advanced computer-based technique for both the geometrical reconstruction and the stress analysis. In the present study, the computer-assisted tomography (CAT) and finite element method (FEM) are merged to perform detailed three dimensional nonlinear analysis of the human ligamentous...